Home / 1,971.30-2,717.85-1,615.92

Finding the Fourth Proportional to 1,971.30, 2,717.85 and 1,615.92

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Solution

The fourth proportional to 1,971.30, 2,717.85 and 1,615.92 is: 2,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.30 : 2,717.85 = 1,615.92 : x
  2. Step 2: Convert to fraction form
    1,971.30/2,717.85 = 1,615.92/x
  3. Step 3: Cross multiply
    1,971.30x = 2,717.85 × 1,615.92
  4. Step 4: Simplify right side
    1,971.30x = 4,391,828.17
  5. Step 5: Solve for x
    x = 4,391,828.17/1,971.30
  6. Step 6: Final answer
    x = 2,227.88

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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.