Home / 3,156.96-4,353.84-2,271.36

Finding the Fourth Proportional to 3,156.96, 4,353.84 and 2,271.36

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Solution

The fourth proportional to 3,156.96, 4,353.84 and 2,271.36 is: 3,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.96 : 4,353.84 = 2,271.36 : x
  2. Step 2: Convert to fraction form
    3,156.96/4,353.84 = 2,271.36/x
  3. Step 3: Cross multiply
    3,156.96x = 4,353.84 × 2,271.36
  4. Step 4: Simplify right side
    3,156.96x = 9,889,138.02
  5. Step 5: Solve for x
    x = 9,889,138.02/3,156.96
  6. Step 6: Final answer
    x = 3,132.49

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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.