Home / 3,178.73-4,387.19-1,852.43

Finding the Fourth Proportional to 3,178.73, 4,387.19 and 1,852.43

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Solution

The fourth proportional to 3,178.73, 4,387.19 and 1,852.43 is: 2,556.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.73 : 4,387.19 = 1,852.43 : x
  2. Step 2: Convert to fraction form
    3,178.73/4,387.19 = 1,852.43/x
  3. Step 3: Cross multiply
    3,178.73x = 4,387.19 × 1,852.43
  4. Step 4: Simplify right side
    3,178.73x = 8,126,931.17
  5. Step 5: Solve for x
    x = 8,126,931.17/3,178.73
  6. Step 6: Final answer
    x = 2,556.66

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1.5x scale

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.