Home / 2,646.60-3,659.28-2,318.55

Finding the Fourth Proportional to 2,646.60, 3,659.28 and 2,318.55

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Solution

The fourth proportional to 2,646.60, 3,659.28 and 2,318.55 is: 3,205.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646.60 : 3,659.28 = 2,318.55 : x
  2. Step 2: Convert to fraction form
    2,646.60/3,659.28 = 2,318.55/x
  3. Step 3: Cross multiply
    2,646.60x = 3,659.28 × 2,318.55
  4. Step 4: Simplify right side
    2,646.60x = 8,484,223.64
  5. Step 5: Solve for x
    x = 8,484,223.64/2,646.60
  6. Step 6: Final answer
    x = 3,205.71

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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.