Home / 2,261.15-3,391.83-702.21

Finding the Fourth Proportional to 2,261.15, 3,391.83 and 702.21

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Solution

The fourth proportional to 2,261.15, 3,391.83 and 702.21 is: 1,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.15 : 3,391.83 = 702.21 : x
  2. Step 2: Convert to fraction form
    2,261.15/3,391.83 = 702.21/x
  3. Step 3: Cross multiply
    2,261.15x = 3,391.83 × 702.21
  4. Step 4: Simplify right side
    2,261.15x = 2,381,776.94
  5. Step 5: Solve for x
    x = 2,381,776.94/2,261.15
  6. Step 6: Final answer
    x = 1,053.35

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1.5x scale

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.