Home / 3,921,755.20-5,411,182.56-2,289,421.76

Finding the Fourth Proportional to 3,921,755.20, 5,411,182.56 and 2,289,421.76

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Solution

The fourth proportional to 3,921,755.20, 5,411,182.56 and 2,289,421.76 is: 3,158,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,755.20 : 5,411,182.56 = 2,289,421.76 : x
  2. Step 2: Convert to fraction form
    3,921,755.20/5,411,182.56 = 2,289,421.76/x
  3. Step 3: Cross multiply
    3,921,755.20x = 5,411,182.56 × 2,289,421.76
  4. Step 4: Simplify right side
    3,921,755.20x = 12,388,479,100,196.50
  5. Step 5: Solve for x
    x = 12,388,479,100,196.50/3,921,755.20
  6. Step 6: Final answer
    x = 3,158,911.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.