Home / 7,502.20-11,254.65-3,120.10

Finding the Fourth Proportional to 7,502.20, 11,254.65 and 3,120.10

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Solution

The fourth proportional to 7,502.20, 11,254.65 and 3,120.10 is: 4,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.20 : 11,254.65 = 3,120.10 : x
  2. Step 2: Convert to fraction form
    7,502.20/11,254.65 = 3,120.10/x
  3. Step 3: Cross multiply
    7,502.20x = 11,254.65 × 3,120.10
  4. Step 4: Simplify right side
    7,502.20x = 35,115,633.47
  5. Step 5: Solve for x
    x = 35,115,633.47/7,502.20
  6. Step 6: Final answer
    x = 4,680.71

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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.