Home / 3,511.41-5,270.88-3,123.90

Finding the Fourth Proportional to 3,511.41, 5,270.88 and 3,123.90

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Solution

The fourth proportional to 3,511.41, 5,270.88 and 3,123.90 is: 4,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.41 : 5,270.88 = 3,123.90 : x
  2. Step 2: Convert to fraction form
    3,511.41/5,270.88 = 3,123.90/x
  3. Step 3: Cross multiply
    3,511.41x = 5,270.88 × 3,123.90
  4. Step 4: Simplify right side
    3,511.41x = 16,465,702.03
  5. Step 5: Solve for x
    x = 16,465,702.03/3,511.41
  6. Step 6: Final answer
    x = 4,689.20

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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.