Home / 3,156.28-4,353.42-2,106.52

Finding the Fourth Proportional to 3,156.28, 4,353.42 and 2,106.52

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Solution

The fourth proportional to 3,156.28, 4,353.42 and 2,106.52 is: 2,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.28 : 4,353.42 = 2,106.52 : x
  2. Step 2: Convert to fraction form
    3,156.28/4,353.42 = 2,106.52/x
  3. Step 3: Cross multiply
    3,156.28x = 4,353.42 × 2,106.52
  4. Step 4: Simplify right side
    3,156.28x = 9,170,566.30
  5. Step 5: Solve for x
    x = 9,170,566.30/3,156.28
  6. Step 6: Final answer
    x = 2,905.50

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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.