Home / 1,457.20-2,010.42-933.52

Finding the Fourth Proportional to 1,457.20, 2,010.42 and 933.52

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Solution

The fourth proportional to 1,457.20, 2,010.42 and 933.52 is: 1,287.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.20 : 2,010.42 = 933.52 : x
  2. Step 2: Convert to fraction form
    1,457.20/2,010.42 = 933.52/x
  3. Step 3: Cross multiply
    1,457.20x = 2,010.42 × 933.52
  4. Step 4: Simplify right side
    1,457.20x = 1,876,767.28
  5. Step 5: Solve for x
    x = 1,876,767.28/1,457.20
  6. Step 6: Final answer
    x = 1,287.93

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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.