Home / 6,380.87-9,570.90-1,998.23

Finding the Fourth Proportional to 6,380.87, 9,570.90 and 1,998.23

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Solution

The fourth proportional to 6,380.87, 9,570.90 and 1,998.23 is: 2,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,380.87 : 9,570.90 = 1,998.23 : x
  2. Step 2: Convert to fraction form
    6,380.87/9,570.90 = 1,998.23/x
  3. Step 3: Cross multiply
    6,380.87x = 9,570.90 × 1,998.23
  4. Step 4: Simplify right side
    6,380.87x = 19,124,859.51
  5. Step 5: Solve for x
    x = 19,124,859.51/6,380.87
  6. Step 6: Final answer
    x = 2,997.22

Related Problems

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Half scale
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Double scale
Find fourth proportional to 6,381.87, 9,572.40 and 1,999.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.