Home / 5,132.60-7,688.10-4,268.60

Finding the Fourth Proportional to 5,132.60, 7,688.10 and 4,268.60

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Solution

The fourth proportional to 5,132.60, 7,688.10 and 4,268.60 is: 6,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.60 : 7,688.10 = 4,268.60 : x
  2. Step 2: Convert to fraction form
    5,132.60/7,688.10 = 4,268.60/x
  3. Step 3: Cross multiply
    5,132.60x = 7,688.10 × 4,268.60
  4. Step 4: Simplify right side
    5,132.60x = 32,817,423.66
  5. Step 5: Solve for x
    x = 32,817,423.66/5,132.60
  6. Step 6: Final answer
    x = 6,393.92

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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.