Home / 5,470.20-8,205.30-4,652.10

Finding the Fourth Proportional to 5,470.20, 8,205.30 and 4,652.10

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Solution

The fourth proportional to 5,470.20, 8,205.30 and 4,652.10 is: 6,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.20 : 8,205.30 = 4,652.10 : x
  2. Step 2: Convert to fraction form
    5,470.20/8,205.30 = 4,652.10/x
  3. Step 3: Cross multiply
    5,470.20x = 8,205.30 × 4,652.10
  4. Step 4: Simplify right side
    5,470.20x = 38,171,876.13
  5. Step 5: Solve for x
    x = 38,171,876.13/5,470.20
  6. Step 6: Final answer
    x = 6,978.15

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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.