Home / 2,655.15-3,659.35-2,159.43

Finding the Fourth Proportional to 2,655.15, 3,659.35 and 2,159.43

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Solution

The fourth proportional to 2,655.15, 3,659.35 and 2,159.43 is: 2,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.15 : 3,659.35 = 2,159.43 : x
  2. Step 2: Convert to fraction form
    2,655.15/3,659.35 = 2,159.43/x
  3. Step 3: Cross multiply
    2,655.15x = 3,659.35 × 2,159.43
  4. Step 4: Simplify right side
    2,655.15x = 7,902,110.17
  5. Step 5: Solve for x
    x = 7,902,110.17/2,655.15
  6. Step 6: Final answer
    x = 2,976.14

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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.