Home / 5,211.40-7,184.28-3,716.76

Finding the Fourth Proportional to 5,211.40, 7,184.28 and 3,716.76

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Solution

The fourth proportional to 5,211.40, 7,184.28 and 3,716.76 is: 5,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.40 : 7,184.28 = 3,716.76 : x
  2. Step 2: Convert to fraction form
    5,211.40/7,184.28 = 3,716.76/x
  3. Step 3: Cross multiply
    5,211.40x = 7,184.28 × 3,716.76
  4. Step 4: Simplify right side
    5,211.40x = 26,702,244.53
  5. Step 5: Solve for x
    x = 26,702,244.53/5,211.40
  6. Step 6: Final answer
    x = 5,123.81

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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.