Home / 2,663.26-3,994.08-1,275.88

Finding the Fourth Proportional to 2,663.26, 3,994.08 and 1,275.88

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Solution

The fourth proportional to 2,663.26, 3,994.08 and 1,275.88 is: 1,913.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.26 : 3,994.08 = 1,275.88 : x
  2. Step 2: Convert to fraction form
    2,663.26/3,994.08 = 1,275.88/x
  3. Step 3: Cross multiply
    2,663.26x = 3,994.08 × 1,275.88
  4. Step 4: Simplify right side
    2,663.26x = 5,095,966.79
  5. Step 5: Solve for x
    x = 5,095,966.79/2,663.26
  6. Step 6: Final answer
    x = 1,913.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.