Home / 1,155.43-1,733.83-425.06

Finding the Fourth Proportional to 1,155.43, 1,733.83 and 425.06

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Solution

The fourth proportional to 1,155.43, 1,733.83 and 425.06 is: 637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.43 : 1,733.83 = 425.06 : x
  2. Step 2: Convert to fraction form
    1,155.43/1,733.83 = 425.06/x
  3. Step 3: Cross multiply
    1,155.43x = 1,733.83 × 425.06
  4. Step 4: Simplify right side
    1,155.43x = 736,972.05
  5. Step 5: Solve for x
    x = 736,972.05/1,155.43
  6. Step 6: Final answer
    x = 637.83

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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.