Home / 5,155.47-7,733.14-1,259.91

Finding the Fourth Proportional to 5,155.47, 7,733.14 and 1,259.91

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Solution

The fourth proportional to 5,155.47, 7,733.14 and 1,259.91 is: 1,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.47 : 7,733.14 = 1,259.91 : x
  2. Step 2: Convert to fraction form
    5,155.47/7,733.14 = 1,259.91/x
  3. Step 3: Cross multiply
    5,155.47x = 7,733.14 × 1,259.91
  4. Step 4: Simplify right side
    5,155.47x = 9,743,057.27
  5. Step 5: Solve for x
    x = 9,743,057.27/5,155.47
  6. Step 6: Final answer
    x = 1,889.85

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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.