Home / 5,630.10-8,442.40-3,290.70

Finding the Fourth Proportional to 5,630.10, 8,442.40 and 3,290.70

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Solution

The fourth proportional to 5,630.10, 8,442.40 and 3,290.70 is: 4,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.10 : 8,442.40 = 3,290.70 : x
  2. Step 2: Convert to fraction form
    5,630.10/8,442.40 = 3,290.70/x
  3. Step 3: Cross multiply
    5,630.10x = 8,442.40 × 3,290.70
  4. Step 4: Simplify right side
    5,630.10x = 27,781,405.68
  5. Step 5: Solve for x
    x = 27,781,405.68/5,630.10
  6. Step 6: Final answer
    x = 4,934.44

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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.