Home / 3,886,447.80-5,363,280.21-2,144,069.76

Finding the Fourth Proportional to 3,886,447.80, 5,363,280.21 and 2,144,069.76

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Solution

The fourth proportional to 3,886,447.80, 5,363,280.21 and 2,144,069.76 is: 2,958,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886,447.80 : 5,363,280.21 = 2,144,069.76 : x
  2. Step 2: Convert to fraction form
    3,886,447.80/5,363,280.21 = 2,144,069.76/x
  3. Step 3: Cross multiply
    3,886,447.80x = 5,363,280.21 × 2,144,069.76
  4. Step 4: Simplify right side
    3,886,447.80x = 11,499,246,912,667.45
  5. Step 5: Solve for x
    x = 11,499,246,912,667.45/3,886,447.80
  6. Step 6: Final answer
    x = 2,958,806.47

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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.