Home / 1,778.59-2,455.61-1,591.76

Finding the Fourth Proportional to 1,778.59, 2,455.61 and 1,591.76

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Solution

The fourth proportional to 1,778.59, 2,455.61 and 1,591.76 is: 2,197.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.59 : 2,455.61 = 1,591.76 : x
  2. Step 2: Convert to fraction form
    1,778.59/2,455.61 = 1,591.76/x
  3. Step 3: Cross multiply
    1,778.59x = 2,455.61 × 1,591.76
  4. Step 4: Simplify right side
    1,778.59x = 3,908,730.62
  5. Step 5: Solve for x
    x = 3,908,730.62/1,778.59
  6. Step 6: Final answer
    x = 2,197.66

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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.