Home / 6,900.31-9,517.29-4,380.23

Finding the Fourth Proportional to 6,900.31, 9,517.29 and 4,380.23

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Solution

The fourth proportional to 6,900.31, 9,517.29 and 4,380.23 is: 6,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900.31 : 9,517.29 = 4,380.23 : x
  2. Step 2: Convert to fraction form
    6,900.31/9,517.29 = 4,380.23/x
  3. Step 3: Cross multiply
    6,900.31x = 9,517.29 × 4,380.23
  4. Step 4: Simplify right side
    6,900.31x = 41,687,919.18
  5. Step 5: Solve for x
    x = 41,687,919.18/6,900.31
  6. Step 6: Final answer
    x = 6,041.46

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Double scale
Find fourth proportional to 6,901.31, 9,518.67 and 4,381.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.