Home / 6,278.19-8,663.79-3,445.62

Finding the Fourth Proportional to 6,278.19, 8,663.79 and 3,445.62

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Solution

The fourth proportional to 6,278.19, 8,663.79 and 3,445.62 is: 4,754.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.19 : 8,663.79 = 3,445.62 : x
  2. Step 2: Convert to fraction form
    6,278.19/8,663.79 = 3,445.62/x
  3. Step 3: Cross multiply
    6,278.19x = 8,663.79 × 3,445.62
  4. Step 4: Simplify right side
    6,278.19x = 29,852,128.10
  5. Step 5: Solve for x
    x = 29,852,128.10/6,278.19
  6. Step 6: Final answer
    x = 4,754.89

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Half scale
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Double scale
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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.