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Finding the Fourth Proportional to 5,990.40, 8,979.12 and 3,064.68

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Solution

The fourth proportional to 5,990.40, 8,979.12 and 3,064.68 is: 4,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.40 : 8,979.12 = 3,064.68 : x
  2. Step 2: Convert to fraction form
    5,990.40/8,979.12 = 3,064.68/x
  3. Step 3: Cross multiply
    5,990.40x = 8,979.12 × 3,064.68
  4. Step 4: Simplify right side
    5,990.40x = 27,518,129.48
  5. Step 5: Solve for x
    x = 27,518,129.48/5,990.40
  6. Step 6: Final answer
    x = 4,593.70

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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.