Home / 3,113.56-4,302.18-2,489.24

Finding the Fourth Proportional to 3,113.56, 4,302.18 and 2,489.24

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Solution

The fourth proportional to 3,113.56, 4,302.18 and 2,489.24 is: 3,439.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.56 : 4,302.18 = 2,489.24 : x
  2. Step 2: Convert to fraction form
    3,113.56/4,302.18 = 2,489.24/x
  3. Step 3: Cross multiply
    3,113.56x = 4,302.18 × 2,489.24
  4. Step 4: Simplify right side
    3,113.56x = 10,709,145.10
  5. Step 5: Solve for x
    x = 10,709,145.10/3,113.56
  6. Step 6: Final answer
    x = 3,439.52

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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.