Home / 4,659.60-6,989.40-4,331.55

Finding the Fourth Proportional to 4,659.60, 6,989.40 and 4,331.55

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Solution

The fourth proportional to 4,659.60, 6,989.40 and 4,331.55 is: 6,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,659.60 : 6,989.40 = 4,331.55 : x
  2. Step 2: Convert to fraction form
    4,659.60/6,989.40 = 4,331.55/x
  3. Step 3: Cross multiply
    4,659.60x = 6,989.40 × 4,331.55
  4. Step 4: Simplify right side
    4,659.60x = 30,274,935.57
  5. Step 5: Solve for x
    x = 30,274,935.57/4,659.60
  6. Step 6: Final answer
    x = 6,497.33

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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.