Home / 5,132.75-7,707.78-4,869.72

Finding the Fourth Proportional to 5,132.75, 7,707.78 and 4,869.72

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Solution

The fourth proportional to 5,132.75, 7,707.78 and 4,869.72 is: 7,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.75 : 7,707.78 = 4,869.72 : x
  2. Step 2: Convert to fraction form
    5,132.75/7,707.78 = 4,869.72/x
  3. Step 3: Cross multiply
    5,132.75x = 7,707.78 × 4,869.72
  4. Step 4: Simplify right side
    5,132.75x = 37,534,730.42
  5. Step 5: Solve for x
    x = 37,534,730.42/5,132.75
  6. Step 6: Final answer
    x = 7,312.80

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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.