Home / 7,531.20-11,298.60-3,632.40

Finding the Fourth Proportional to 7,531.20, 11,298.60 and 3,632.40

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Solution

The fourth proportional to 7,531.20, 11,298.60 and 3,632.40 is: 5,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,531.20 : 11,298.60 = 3,632.40 : x
  2. Step 2: Convert to fraction form
    7,531.20/11,298.60 = 3,632.40/x
  3. Step 3: Cross multiply
    7,531.20x = 11,298.60 × 3,632.40
  4. Step 4: Simplify right side
    7,531.20x = 41,041,034.64
  5. Step 5: Solve for x
    x = 41,041,034.64/7,531.20
  6. Step 6: Final answer
    x = 5,449.47

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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.