Home / 1,691.10-2,335.01-1,541.66

Finding the Fourth Proportional to 1,691.10, 2,335.01 and 1,541.66

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Solution

The fourth proportional to 1,691.10, 2,335.01 and 1,541.66 is: 2,128.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.10 : 2,335.01 = 1,541.66 : x
  2. Step 2: Convert to fraction form
    1,691.10/2,335.01 = 1,541.66/x
  3. Step 3: Cross multiply
    1,691.10x = 2,335.01 × 1,541.66
  4. Step 4: Simplify right side
    1,691.10x = 3,599,772.13
  5. Step 5: Solve for x
    x = 3,599,772.13/1,691.10
  6. Step 6: Final answer
    x = 2,128.66

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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.