Home / 6,660.54-9,181.28-4,979.39

Finding the Fourth Proportional to 6,660.54, 9,181.28 and 4,979.39

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Solution

The fourth proportional to 6,660.54, 9,181.28 and 4,979.39 is: 6,863.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.54 : 9,181.28 = 4,979.39 : x
  2. Step 2: Convert to fraction form
    6,660.54/9,181.28 = 4,979.39/x
  3. Step 3: Cross multiply
    6,660.54x = 9,181.28 × 4,979.39
  4. Step 4: Simplify right side
    6,660.54x = 45,717,140.36
  5. Step 5: Solve for x
    x = 45,717,140.36/6,660.54
  6. Step 6: Final answer
    x = 6,863.88

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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.