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Finding the Fourth Proportional to 5,571.52, 7,692.24 and 3,478.72

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Solution

The fourth proportional to 5,571.52, 7,692.24 and 3,478.72 is: 4,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.52 : 7,692.24 = 3,478.72 : x
  2. Step 2: Convert to fraction form
    5,571.52/7,692.24 = 3,478.72/x
  3. Step 3: Cross multiply
    5,571.52x = 7,692.24 × 3,478.72
  4. Step 4: Simplify right side
    5,571.52x = 26,759,149.13
  5. Step 5: Solve for x
    x = 26,759,149.13/5,571.52
  6. Step 6: Final answer
    x = 4,802.85

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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.