Home / 3,894,630.89-5,374,606.98-2,128,564.73

Finding the Fourth Proportional to 3,894,630.89, 5,374,606.98 and 2,128,564.73

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Solution

The fourth proportional to 3,894,630.89, 5,374,606.98 and 2,128,564.73 is: 2,937,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894,630.89 : 5,374,606.98 = 2,128,564.73 : x
  2. Step 2: Convert to fraction form
    3,894,630.89/5,374,606.98 = 2,128,564.73/x
  3. Step 3: Cross multiply
    3,894,630.89x = 5,374,606.98 × 2,128,564.73
  4. Step 4: Simplify right side
    3,894,630.89x = 11,440,198,828,366.78
  5. Step 5: Solve for x
    x = 11,440,198,828,366.78/3,894,630.89
  6. Step 6: Final answer
    x = 2,937,428.26

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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.