Home / 6,279.28-8,665.44-3,484.78

Finding the Fourth Proportional to 6,279.28, 8,665.44 and 3,484.78

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Solution

The fourth proportional to 6,279.28, 8,665.44 and 3,484.78 is: 4,809.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.28 : 8,665.44 = 3,484.78 : x
  2. Step 2: Convert to fraction form
    6,279.28/8,665.44 = 3,484.78/x
  3. Step 3: Cross multiply
    6,279.28x = 8,665.44 × 3,484.78
  4. Step 4: Simplify right side
    6,279.28x = 30,197,152.00
  5. Step 5: Solve for x
    x = 30,197,152.00/6,279.28
  6. Step 6: Final answer
    x = 4,809.02

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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.