Home / 6,988.47-10,479.36-3,287.58

Finding the Fourth Proportional to 6,988.47, 10,479.36 and 3,287.58

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Solution

The fourth proportional to 6,988.47, 10,479.36 and 3,287.58 is: 4,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.47 : 10,479.36 = 3,287.58 : x
  2. Step 2: Convert to fraction form
    6,988.47/10,479.36 = 3,287.58/x
  3. Step 3: Cross multiply
    6,988.47x = 10,479.36 × 3,287.58
  4. Step 4: Simplify right side
    6,988.47x = 34,451,734.35
  5. Step 5: Solve for x
    x = 34,451,734.35/6,988.47
  6. Step 6: Final answer
    x = 4,929.80

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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.