Home / 3,897,677.55-5,378,829.83-2,155,464.18

Finding the Fourth Proportional to 3,897,677.55, 5,378,829.83 and 2,155,464.18

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Solution

The fourth proportional to 3,897,677.55, 5,378,829.83 and 2,155,464.18 is: 2,974,559.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897,677.55 : 5,378,829.83 = 2,155,464.18 : x
  2. Step 2: Convert to fraction form
    3,897,677.55/5,378,829.83 = 2,155,464.18/x
  3. Step 3: Cross multiply
    3,897,677.55x = 5,378,829.83 × 2,155,464.18
  4. Step 4: Simplify right side
    3,897,677.55x = 11,593,875,039,811.90
  5. Step 5: Solve for x
    x = 11,593,875,039,811.90/3,897,677.55
  6. Step 6: Final answer
    x = 2,974,559.82

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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.