Home / 1,951.11-2,689.36-1,203.45

Finding the Fourth Proportional to 1,951.11, 2,689.36 and 1,203.45

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Solution

The fourth proportional to 1,951.11, 2,689.36 and 1,203.45 is: 1,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.11 : 2,689.36 = 1,203.45 : x
  2. Step 2: Convert to fraction form
    1,951.11/2,689.36 = 1,203.45/x
  3. Step 3: Cross multiply
    1,951.11x = 2,689.36 × 1,203.45
  4. Step 4: Simplify right side
    1,951.11x = 3,236,510.29
  5. Step 5: Solve for x
    x = 3,236,510.29/1,951.11
  6. Step 6: Final answer
    x = 1,658.80

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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.