Home / 4,549.50-6,279.53-2,979.72

Finding the Fourth Proportional to 4,549.50, 6,279.53 and 2,979.72

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Solution

The fourth proportional to 4,549.50, 6,279.53 and 2,979.72 is: 4,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,549.50 : 6,279.53 = 2,979.72 : x
  2. Step 2: Convert to fraction form
    4,549.50/6,279.53 = 2,979.72/x
  3. Step 3: Cross multiply
    4,549.50x = 6,279.53 × 2,979.72
  4. Step 4: Simplify right side
    4,549.50x = 18,711,226.23
  5. Step 5: Solve for x
    x = 18,711,226.23/4,549.50
  6. Step 6: Final answer
    x = 4,112.81

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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.