Home / 1,790.13-2,685.19-557.61

Finding the Fourth Proportional to 1,790.13, 2,685.19 and 557.61

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Solution

The fourth proportional to 1,790.13, 2,685.19 and 557.61 is: 836.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.13 : 2,685.19 = 557.61 : x
  2. Step 2: Convert to fraction form
    1,790.13/2,685.19 = 557.61/x
  3. Step 3: Cross multiply
    1,790.13x = 2,685.19 × 557.61
  4. Step 4: Simplify right side
    1,790.13x = 1,497,288.80
  5. Step 5: Solve for x
    x = 1,497,288.80/1,790.13
  6. Step 6: Final answer
    x = 836.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.