Home / 3,126.66-4,690.65-1,178.82

Finding the Fourth Proportional to 3,126.66, 4,690.65 and 1,178.82

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Solution

The fourth proportional to 3,126.66, 4,690.65 and 1,178.82 is: 1,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.66 : 4,690.65 = 1,178.82 : x
  2. Step 2: Convert to fraction form
    3,126.66/4,690.65 = 1,178.82/x
  3. Step 3: Cross multiply
    3,126.66x = 4,690.65 × 1,178.82
  4. Step 4: Simplify right side
    3,126.66x = 5,529,432.03
  5. Step 5: Solve for x
    x = 5,529,432.03/3,126.66
  6. Step 6: Final answer
    x = 1,768.48

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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.