Home / 3,857,875.97-5,321,428.65-2,478,849.41

Finding the Fourth Proportional to 3,857,875.97, 5,321,428.65 and 2,478,849.41

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Solution

The fourth proportional to 3,857,875.97, 5,321,428.65 and 2,478,849.41 is: 3,419,244.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857,875.97 : 5,321,428.65 = 2,478,849.41 : x
  2. Step 2: Convert to fraction form
    3,857,875.97/5,321,428.65 = 2,478,849.41/x
  3. Step 3: Cross multiply
    3,857,875.97x = 5,321,428.65 × 2,478,849.41
  4. Step 4: Simplify right side
    3,857,875.97x = 13,191,020,282,713.17
  5. Step 5: Solve for x
    x = 13,191,020,282,713.17/3,857,875.97
  6. Step 6: Final answer
    x = 3,419,244.27

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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.