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Finding the Fourth Proportional to 5,473.60, 7,543.02 and 3,979.15

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Solution

The fourth proportional to 5,473.60, 7,543.02 and 3,979.15 is: 5,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,473.60 : 7,543.02 = 3,979.15 : x
  2. Step 2: Convert to fraction form
    5,473.60/7,543.02 = 3,979.15/x
  3. Step 3: Cross multiply
    5,473.60x = 7,543.02 × 3,979.15
  4. Step 4: Simplify right side
    5,473.60x = 30,014,808.03
  5. Step 5: Solve for x
    x = 30,014,808.03/5,473.60
  6. Step 6: Final answer
    x = 5,483.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.