Home / 5,654.88-8,440.61-4,990.14

Finding the Fourth Proportional to 5,654.88, 8,440.61 and 4,990.14

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Solution

The fourth proportional to 5,654.88, 8,440.61 and 4,990.14 is: 7,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,654.88 : 8,440.61 = 4,990.14 : x
  2. Step 2: Convert to fraction form
    5,654.88/8,440.61 = 4,990.14/x
  3. Step 3: Cross multiply
    5,654.88x = 8,440.61 × 4,990.14
  4. Step 4: Simplify right side
    5,654.88x = 42,119,800.63
  5. Step 5: Solve for x
    x = 42,119,800.63/5,654.88
  6. Step 6: Final answer
    x = 7,448.40

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.