Home / 4,752.71-7,129.05-1,289.96

Finding the Fourth Proportional to 4,752.71, 7,129.05 and 1,289.96

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Solution

The fourth proportional to 4,752.71, 7,129.05 and 1,289.96 is: 1,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.71 : 7,129.05 = 1,289.96 : x
  2. Step 2: Convert to fraction form
    4,752.71/7,129.05 = 1,289.96/x
  3. Step 3: Cross multiply
    4,752.71x = 7,129.05 × 1,289.96
  4. Step 4: Simplify right side
    4,752.71x = 9,196,153.69
  5. Step 5: Solve for x
    x = 9,196,153.69/4,752.71
  6. Step 6: Final answer
    x = 1,934.93

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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.