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Finding the Fourth Proportional to 7,292.48, 10,930.28 and 3,126.28

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Solution

The fourth proportional to 7,292.48, 10,930.28 and 3,126.28 is: 4,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.48 : 10,930.28 = 3,126.28 : x
  2. Step 2: Convert to fraction form
    7,292.48/10,930.28 = 3,126.28/x
  3. Step 3: Cross multiply
    7,292.48x = 10,930.28 × 3,126.28
  4. Step 4: Simplify right side
    7,292.48x = 34,171,115.76
  5. Step 5: Solve for x
    x = 34,171,115.76/7,292.48
  6. Step 6: Final answer
    x = 4,685.80

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1.5x scale

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.