Home / 1,351.10-2,029.28-1,277.52

Finding the Fourth Proportional to 1,351.10, 2,029.28 and 1,277.52

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Solution

The fourth proportional to 1,351.10, 2,029.28 and 1,277.52 is: 1,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.10 : 2,029.28 = 1,277.52 : x
  2. Step 2: Convert to fraction form
    1,351.10/2,029.28 = 1,277.52/x
  3. Step 3: Cross multiply
    1,351.10x = 2,029.28 × 1,277.52
  4. Step 4: Simplify right side
    1,351.10x = 2,592,439.40
  5. Step 5: Solve for x
    x = 2,592,439.40/1,351.10
  6. Step 6: Final answer
    x = 1,918.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.