Home / 1,294.26-1,787.27-1,225.22

Finding the Fourth Proportional to 1,294.26, 1,787.27 and 1,225.22

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Solution

The fourth proportional to 1,294.26, 1,787.27 and 1,225.22 is: 1,691.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.26 : 1,787.27 = 1,225.22 : x
  2. Step 2: Convert to fraction form
    1,294.26/1,787.27 = 1,225.22/x
  3. Step 3: Cross multiply
    1,294.26x = 1,787.27 × 1,225.22
  4. Step 4: Simplify right side
    1,294.26x = 2,189,783.89
  5. Step 5: Solve for x
    x = 2,189,783.89/1,294.26
  6. Step 6: Final answer
    x = 1,691.92

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1.5x scale

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.