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Finding the Fourth Proportional to 1,056.38, 1,457.87 and 602.24

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Solution

The fourth proportional to 1,056.38, 1,457.87 and 602.24 is: 831.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.38 : 1,457.87 = 602.24 : x
  2. Step 2: Convert to fraction form
    1,056.38/1,457.87 = 602.24/x
  3. Step 3: Cross multiply
    1,056.38x = 1,457.87 × 602.24
  4. Step 4: Simplify right side
    1,056.38x = 877,977.33
  5. Step 5: Solve for x
    x = 877,977.33/1,056.38
  6. Step 6: Final answer
    x = 831.12

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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.