Home / 5,148.18-7,708.56-3,289.20

Finding the Fourth Proportional to 5,148.18, 7,708.56 and 3,289.20

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Solution

The fourth proportional to 5,148.18, 7,708.56 and 3,289.20 is: 4,925.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.18 : 7,708.56 = 3,289.20 : x
  2. Step 2: Convert to fraction form
    5,148.18/7,708.56 = 3,289.20/x
  3. Step 3: Cross multiply
    5,148.18x = 7,708.56 × 3,289.20
  4. Step 4: Simplify right side
    5,148.18x = 25,354,995.55
  5. Step 5: Solve for x
    x = 25,354,995.55/5,148.18
  6. Step 6: Final answer
    x = 4,925.04

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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.