Home / 5,135.03-7,702.86-2,172.92

Finding the Fourth Proportional to 5,135.03, 7,702.86 and 2,172.92

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Solution

The fourth proportional to 5,135.03, 7,702.86 and 2,172.92 is: 3,259.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.03 : 7,702.86 = 2,172.92 : x
  2. Step 2: Convert to fraction form
    5,135.03/7,702.86 = 2,172.92/x
  3. Step 3: Cross multiply
    5,135.03x = 7,702.86 × 2,172.92
  4. Step 4: Simplify right side
    5,135.03x = 16,737,660.04
  5. Step 5: Solve for x
    x = 16,737,660.04/5,135.03
  6. Step 6: Final answer
    x = 3,259.51

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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.