Home / 6,279.20-8,665.38-3,484.70

Finding the Fourth Proportional to 6,279.20, 8,665.38 and 3,484.70

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Solution

The fourth proportional to 6,279.20, 8,665.38 and 3,484.70 is: 4,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.20 : 8,665.38 = 3,484.70 : x
  2. Step 2: Convert to fraction form
    6,279.20/8,665.38 = 3,484.70/x
  3. Step 3: Cross multiply
    6,279.20x = 8,665.38 × 3,484.70
  4. Step 4: Simplify right side
    6,279.20x = 30,196,206.36
  5. Step 5: Solve for x
    x = 30,196,206.36/6,279.20
  6. Step 6: Final answer
    x = 4,808.93

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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.