Home / 1,134.10-1,701.15-928.90

Finding the Fourth Proportional to 1,134.10, 1,701.15 and 928.90

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Solution

The fourth proportional to 1,134.10, 1,701.15 and 928.90 is: 1,393.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.10 : 1,701.15 = 928.90 : x
  2. Step 2: Convert to fraction form
    1,134.10/1,701.15 = 928.90/x
  3. Step 3: Cross multiply
    1,134.10x = 1,701.15 × 928.90
  4. Step 4: Simplify right side
    1,134.10x = 1,580,198.24
  5. Step 5: Solve for x
    x = 1,580,198.24/1,134.10
  6. Step 6: Final answer
    x = 1,393.35

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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.