Home / 3,976,868.48-5,486,202.24-2,688,158.72

Finding the Fourth Proportional to 3,976,868.48, 5,486,202.24 and 2,688,158.72

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Solution

The fourth proportional to 3,976,868.48, 5,486,202.24 and 2,688,158.72 is: 3,708,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976,868.48 : 5,486,202.24 = 2,688,158.72 : x
  2. Step 2: Convert to fraction form
    3,976,868.48/5,486,202.24 = 2,688,158.72/x
  3. Step 3: Cross multiply
    3,976,868.48x = 5,486,202.24 × 2,688,158.72
  4. Step 4: Simplify right side
    3,976,868.48x = 14,747,782,391,139.54
  5. Step 5: Solve for x
    x = 14,747,782,391,139.54/3,976,868.48
  6. Step 6: Final answer
    x = 3,708,390.78

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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.