Home / 2,551.40-3,826.78-702.66

Finding the Fourth Proportional to 2,551.40, 3,826.78 and 702.66

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Solution

The fourth proportional to 2,551.40, 3,826.78 and 702.66 is: 1,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.40 : 3,826.78 = 702.66 : x
  2. Step 2: Convert to fraction form
    2,551.40/3,826.78 = 702.66/x
  3. Step 3: Cross multiply
    2,551.40x = 3,826.78 × 702.66
  4. Step 4: Simplify right side
    2,551.40x = 2,688,925.23
  5. Step 5: Solve for x
    x = 2,688,925.23/2,551.40
  6. Step 6: Final answer
    x = 1,053.90

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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.