Home / 3,178.98-4,387.16-1,852.61

Finding the Fourth Proportional to 3,178.98, 4,387.16 and 1,852.61

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Solution

The fourth proportional to 3,178.98, 4,387.16 and 1,852.61 is: 2,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.98 : 4,387.16 = 1,852.61 : x
  2. Step 2: Convert to fraction form
    3,178.98/4,387.16 = 1,852.61/x
  3. Step 3: Cross multiply
    3,178.98x = 4,387.16 × 1,852.61
  4. Step 4: Simplify right side
    3,178.98x = 8,127,679.18
  5. Step 5: Solve for x
    x = 8,127,679.18/3,178.98
  6. Step 6: Final answer
    x = 2,556.69

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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.