Home / 4,979.60-7,469.40-4,165.55

Finding the Fourth Proportional to 4,979.60, 7,469.40 and 4,165.55

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Solution

The fourth proportional to 4,979.60, 7,469.40 and 4,165.55 is: 6,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.60 : 7,469.40 = 4,165.55 : x
  2. Step 2: Convert to fraction form
    4,979.60/7,469.40 = 4,165.55/x
  3. Step 3: Cross multiply
    4,979.60x = 7,469.40 × 4,165.55
  4. Step 4: Simplify right side
    4,979.60x = 31,114,159.17
  5. Step 5: Solve for x
    x = 31,114,159.17/4,979.60
  6. Step 6: Final answer
    x = 6,248.33

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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.