Home / 1,056.38-1,583.61-479.02

Finding the Fourth Proportional to 1,056.38, 1,583.61 and 479.02

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Solution

The fourth proportional to 1,056.38, 1,583.61 and 479.02 is: 718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.38 : 1,583.61 = 479.02 : x
  2. Step 2: Convert to fraction form
    1,056.38/1,583.61 = 479.02/x
  3. Step 3: Cross multiply
    1,056.38x = 1,583.61 × 479.02
  4. Step 4: Simplify right side
    1,056.38x = 758,580.86
  5. Step 5: Solve for x
    x = 758,580.86/1,056.38
  6. Step 6: Final answer
    x = 718.09

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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.