Home / 2,391.28-3,299.70-1,343.32

Finding the Fourth Proportional to 2,391.28, 3,299.70 and 1,343.32

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Solution

The fourth proportional to 2,391.28, 3,299.70 and 1,343.32 is: 1,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.28 : 3,299.70 = 1,343.32 : x
  2. Step 2: Convert to fraction form
    2,391.28/3,299.70 = 1,343.32/x
  3. Step 3: Cross multiply
    2,391.28x = 3,299.70 × 1,343.32
  4. Step 4: Simplify right side
    2,391.28x = 4,432,553.00
  5. Step 5: Solve for x
    x = 4,432,553.00/2,391.28
  6. Step 6: Final answer
    x = 1,853.63

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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.