Home / 5,247.78-7,242.51-3,123.82

Finding the Fourth Proportional to 5,247.78, 7,242.51 and 3,123.82

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Solution

The fourth proportional to 5,247.78, 7,242.51 and 3,123.82 is: 4,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.78 : 7,242.51 = 3,123.82 : x
  2. Step 2: Convert to fraction form
    5,247.78/7,242.51 = 3,123.82/x
  3. Step 3: Cross multiply
    5,247.78x = 7,242.51 × 3,123.82
  4. Step 4: Simplify right side
    5,247.78x = 22,624,297.59
  5. Step 5: Solve for x
    x = 22,624,297.59/5,247.78
  6. Step 6: Final answer
    x = 4,311.21

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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.