Home / 6,988.48-10,479.35-3,287.58

Finding the Fourth Proportional to 6,988.48, 10,479.35 and 3,287.58

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Solution

The fourth proportional to 6,988.48, 10,479.35 and 3,287.58 is: 4,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.48 : 10,479.35 = 3,287.58 : x
  2. Step 2: Convert to fraction form
    6,988.48/10,479.35 = 3,287.58/x
  3. Step 3: Cross multiply
    6,988.48x = 10,479.35 × 3,287.58
  4. Step 4: Simplify right side
    6,988.48x = 34,451,701.47
  5. Step 5: Solve for x
    x = 34,451,701.47/6,988.48
  6. Step 6: Final answer
    x = 4,929.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.