Home / 5,206.95-7,178.11-3,712.27

Finding the Fourth Proportional to 5,206.95, 7,178.11 and 3,712.27

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Solution

The fourth proportional to 5,206.95, 7,178.11 and 3,712.27 is: 5,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.95 : 7,178.11 = 3,712.27 : x
  2. Step 2: Convert to fraction form
    5,206.95/7,178.11 = 3,712.27/x
  3. Step 3: Cross multiply
    5,206.95x = 7,178.11 × 3,712.27
  4. Step 4: Simplify right side
    5,206.95x = 26,647,063.85
  5. Step 5: Solve for x
    x = 26,647,063.85/5,206.95
  6. Step 6: Final answer
    x = 5,117.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.