Home / 8,870.20-13,305.30-3,025.40

Finding the Fourth Proportional to 8,870.20, 13,305.30 and 3,025.40

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Solution

The fourth proportional to 8,870.20, 13,305.30 and 3,025.40 is: 4,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.20 : 13,305.30 = 3,025.40 : x
  2. Step 2: Convert to fraction form
    8,870.20/13,305.30 = 3,025.40/x
  3. Step 3: Cross multiply
    8,870.20x = 13,305.30 × 3,025.40
  4. Step 4: Simplify right side
    8,870.20x = 40,253,854.62
  5. Step 5: Solve for x
    x = 40,253,854.62/8,870.20
  6. Step 6: Final answer
    x = 4,538.10

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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.