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Finding the Fourth Proportional to 2,393.76, 3,302.96 and 1,449.28

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Solution

The fourth proportional to 2,393.76, 3,302.96 and 1,449.28 is: 1,999.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.76 : 3,302.96 = 1,449.28 : x
  2. Step 2: Convert to fraction form
    2,393.76/3,302.96 = 1,449.28/x
  3. Step 3: Cross multiply
    2,393.76x = 3,302.96 × 1,449.28
  4. Step 4: Simplify right side
    2,393.76x = 4,786,913.87
  5. Step 5: Solve for x
    x = 4,786,913.87/2,393.76
  6. Step 6: Final answer
    x = 1,999.75

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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.