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Finding the Fourth Proportional to 1,813.87, 2,502.97 and 1,057.53

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Solution

The fourth proportional to 1,813.87, 2,502.97 and 1,057.53 is: 1,459.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813.87 : 2,502.97 = 1,057.53 : x
  2. Step 2: Convert to fraction form
    1,813.87/2,502.97 = 1,057.53/x
  3. Step 3: Cross multiply
    1,813.87x = 2,502.97 × 1,057.53
  4. Step 4: Simplify right side
    1,813.87x = 2,646,965.86
  5. Step 5: Solve for x
    x = 2,646,965.86/1,813.87
  6. Step 6: Final answer
    x = 1,459.29

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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.