Home / 2,187,372.40-3,287,279.40-1,913,657.20

Finding the Fourth Proportional to 2,187,372.40, 3,287,279.40 and 1,913,657.20

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Solution

The fourth proportional to 2,187,372.40, 3,287,279.40 and 1,913,657.20 is: 2,875,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,372.40 : 3,287,279.40 = 1,913,657.20 : x
  2. Step 2: Convert to fraction form
    2,187,372.40/3,287,279.40 = 1,913,657.20/x
  3. Step 3: Cross multiply
    2,187,372.40x = 3,287,279.40 × 1,913,657.20
  4. Step 4: Simplify right side
    2,187,372.40x = 6,290,725,892,221.68
  5. Step 5: Solve for x
    x = 6,290,725,892,221.68/2,187,372.40
  6. Step 6: Final answer
    x = 2,875,928.16

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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.