Home / 3,213.09-4,432.10-2,838.87

Finding the Fourth Proportional to 3,213.09, 4,432.10 and 2,838.87

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Solution

The fourth proportional to 3,213.09, 4,432.10 and 2,838.87 is: 3,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.09 : 4,432.10 = 2,838.87 : x
  2. Step 2: Convert to fraction form
    3,213.09/4,432.10 = 2,838.87/x
  3. Step 3: Cross multiply
    3,213.09x = 4,432.10 × 2,838.87
  4. Step 4: Simplify right side
    3,213.09x = 12,582,141.53
  5. Step 5: Solve for x
    x = 12,582,141.53/3,213.09
  6. Step 6: Final answer
    x = 3,915.90

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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.