Home / 1,551.30-2,138.49-1,026.42

Finding the Fourth Proportional to 1,551.30, 2,138.49 and 1,026.42

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Solution

The fourth proportional to 1,551.30, 2,138.49 and 1,026.42 is: 1,414.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.30 : 2,138.49 = 1,026.42 : x
  2. Step 2: Convert to fraction form
    1,551.30/2,138.49 = 1,026.42/x
  3. Step 3: Cross multiply
    1,551.30x = 2,138.49 × 1,026.42
  4. Step 4: Simplify right side
    1,551.30x = 2,194,988.91
  5. Step 5: Solve for x
    x = 2,194,988.91/1,551.30
  6. Step 6: Final answer
    x = 1,414.94

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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.