Home / 6,988.30-10,478.40-2,824.90

Finding the Fourth Proportional to 6,988.30, 10,478.40 and 2,824.90

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Solution

The fourth proportional to 6,988.30, 10,478.40 and 2,824.90 is: 4,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.30 : 10,478.40 = 2,824.90 : x
  2. Step 2: Convert to fraction form
    6,988.30/10,478.40 = 2,824.90/x
  3. Step 3: Cross multiply
    6,988.30x = 10,478.40 × 2,824.90
  4. Step 4: Simplify right side
    6,988.30x = 29,600,432.16
  5. Step 5: Solve for x
    x = 29,600,432.16/6,988.30
  6. Step 6: Final answer
    x = 4,235.71

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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.