Home / 3,154.32-4,343.40-2,489.04

Finding the Fourth Proportional to 3,154.32, 4,343.40 and 2,489.04

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Solution

The fourth proportional to 3,154.32, 4,343.40 and 2,489.04 is: 3,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.32 : 4,343.40 = 2,489.04 : x
  2. Step 2: Convert to fraction form
    3,154.32/4,343.40 = 2,489.04/x
  3. Step 3: Cross multiply
    3,154.32x = 4,343.40 × 2,489.04
  4. Step 4: Simplify right side
    3,154.32x = 10,810,896.34
  5. Step 5: Solve for x
    x = 10,810,896.34/3,154.32
  6. Step 6: Final answer
    x = 3,427.33

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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.