Home / 3,121,750.80-4,681,459.80-2,172,301.20

Finding the Fourth Proportional to 3,121,750.80, 4,681,459.80 and 2,172,301.20

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Solution

The fourth proportional to 3,121,750.80, 4,681,459.80 and 2,172,301.20 is: 3,257,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,750.80 : 4,681,459.80 = 2,172,301.20 : x
  2. Step 2: Convert to fraction form
    3,121,750.80/4,681,459.80 = 2,172,301.20/x
  3. Step 3: Cross multiply
    3,121,750.80x = 4,681,459.80 × 2,172,301.20
  4. Step 4: Simplify right side
    3,121,750.80x = 10,169,540,741,291.76
  5. Step 5: Solve for x
    x = 10,169,540,741,291.76/3,121,750.80
  6. Step 6: Final answer
    x = 3,257,640.15

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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.