Home / 1,649.96-2,270.92-1,317.32

Finding the Fourth Proportional to 1,649.96, 2,270.92 and 1,317.32

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Solution

The fourth proportional to 1,649.96, 2,270.92 and 1,317.32 is: 1,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.96 : 2,270.92 = 1,317.32 : x
  2. Step 2: Convert to fraction form
    1,649.96/2,270.92 = 1,317.32/x
  3. Step 3: Cross multiply
    1,649.96x = 2,270.92 × 1,317.32
  4. Step 4: Simplify right side
    1,649.96x = 2,991,528.33
  5. Step 5: Solve for x
    x = 2,991,528.33/1,649.96
  6. Step 6: Final answer
    x = 1,813.09

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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.