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Finding the Fourth Proportional to 7,130.48, 10,695.24 and 2,512.88

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Solution

The fourth proportional to 7,130.48, 10,695.24 and 2,512.88 is: 3,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.48 : 10,695.24 = 2,512.88 : x
  2. Step 2: Convert to fraction form
    7,130.48/10,695.24 = 2,512.88/x
  3. Step 3: Cross multiply
    7,130.48x = 10,695.24 × 2,512.88
  4. Step 4: Simplify right side
    7,130.48x = 26,875,854.69
  5. Step 5: Solve for x
    x = 26,875,854.69/7,130.48
  6. Step 6: Final answer
    x = 3,769.15

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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.