Home / 1,126.52-1,554.90-1,015.79

Finding the Fourth Proportional to 1,126.52, 1,554.90 and 1,015.79

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Solution

The fourth proportional to 1,126.52, 1,554.90 and 1,015.79 is: 1,402.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.52 : 1,554.90 = 1,015.79 : x
  2. Step 2: Convert to fraction form
    1,126.52/1,554.90 = 1,015.79/x
  3. Step 3: Cross multiply
    1,126.52x = 1,554.90 × 1,015.79
  4. Step 4: Simplify right side
    1,126.52x = 1,579,451.87
  5. Step 5: Solve for x
    x = 1,579,451.87/1,126.52
  6. Step 6: Final answer
    x = 1,402.06

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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.