Home / 2,187,620.60-3,281,430.90-1,921,900.10

Finding the Fourth Proportional to 2,187,620.60, 3,281,430.90 and 1,921,900.10

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Solution

The fourth proportional to 2,187,620.60, 3,281,430.90 and 1,921,900.10 is: 2,882,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,620.60 : 3,281,430.90 = 1,921,900.10 : x
  2. Step 2: Convert to fraction form
    2,187,620.60/3,281,430.90 = 1,921,900.10/x
  3. Step 3: Cross multiply
    2,187,620.60x = 3,281,430.90 × 1,921,900.10
  4. Step 4: Simplify right side
    2,187,620.60x = 6,306,582,374,853.09
  5. Step 5: Solve for x
    x = 6,306,582,374,853.09/2,187,620.60
  6. Step 6: Final answer
    x = 2,882,850.15

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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.