Home / 5,571.76-7,689.28-3,181.94

Finding the Fourth Proportional to 5,571.76, 7,689.28 and 3,181.94

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Solution

The fourth proportional to 5,571.76, 7,689.28 and 3,181.94 is: 4,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.76 : 7,689.28 = 3,181.94 : x
  2. Step 2: Convert to fraction form
    5,571.76/7,689.28 = 3,181.94/x
  3. Step 3: Cross multiply
    5,571.76x = 7,689.28 × 3,181.94
  4. Step 4: Simplify right side
    5,571.76x = 24,466,827.60
  5. Step 5: Solve for x
    x = 24,466,827.60/5,571.76
  6. Step 6: Final answer
    x = 4,391.22

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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.