Home / 3,135.18-4,702.84-826.68

Finding the Fourth Proportional to 3,135.18, 4,702.84 and 826.68

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Solution

The fourth proportional to 3,135.18, 4,702.84 and 826.68 is: 1,240.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.18 : 4,702.84 = 826.68 : x
  2. Step 2: Convert to fraction form
    3,135.18/4,702.84 = 826.68/x
  3. Step 3: Cross multiply
    3,135.18x = 4,702.84 × 826.68
  4. Step 4: Simplify right side
    3,135.18x = 3,887,743.77
  5. Step 5: Solve for x
    x = 3,887,743.77/3,135.18
  6. Step 6: Final answer
    x = 1,240.04

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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.