Home / 5,113.80-7,671.60-2,340.78

Finding the Fourth Proportional to 5,113.80, 7,671.60 and 2,340.78

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Solution

The fourth proportional to 5,113.80, 7,671.60 and 2,340.78 is: 3,511.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.80 : 7,671.60 = 2,340.78 : x
  2. Step 2: Convert to fraction form
    5,113.80/7,671.60 = 2,340.78/x
  3. Step 3: Cross multiply
    5,113.80x = 7,671.60 × 2,340.78
  4. Step 4: Simplify right side
    5,113.80x = 17,957,527.85
  5. Step 5: Solve for x
    x = 17,957,527.85/5,113.80
  6. Step 6: Final answer
    x = 3,511.58

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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.