Home / 3,781,436.84-5,220,938.16-2,908,721.78

Finding the Fourth Proportional to 3,781,436.84, 5,220,938.16 and 2,908,721.78

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Solution

The fourth proportional to 3,781,436.84, 5,220,938.16 and 2,908,721.78 is: 4,016,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781,436.84 : 5,220,938.16 = 2,908,721.78 : x
  2. Step 2: Convert to fraction form
    3,781,436.84/5,220,938.16 = 2,908,721.78/x
  3. Step 3: Cross multiply
    3,781,436.84x = 5,220,938.16 × 2,908,721.78
  4. Step 4: Simplify right side
    3,781,436.84x = 15,186,256,538,025.12
  5. Step 5: Solve for x
    x = 15,186,256,538,025.12/3,781,436.84
  6. Step 6: Final answer
    x = 4,016,001.64

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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.