Home / 5,534.85-7,640.69-3,963.81

Finding the Fourth Proportional to 5,534.85, 7,640.69 and 3,963.81

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Solution

The fourth proportional to 5,534.85, 7,640.69 and 3,963.81 is: 5,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,534.85 : 7,640.69 = 3,963.81 : x
  2. Step 2: Convert to fraction form
    5,534.85/7,640.69 = 3,963.81/x
  3. Step 3: Cross multiply
    5,534.85x = 7,640.69 × 3,963.81
  4. Step 4: Simplify right side
    5,534.85x = 30,286,223.61
  5. Step 5: Solve for x
    x = 30,286,223.61/5,534.85
  6. Step 6: Final answer
    x = 5,471.91

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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.