Home / 2,180.83-3,011.10-1,342.66

Finding the Fourth Proportional to 2,180.83, 3,011.10 and 1,342.66

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Solution

The fourth proportional to 2,180.83, 3,011.10 and 1,342.66 is: 1,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.83 : 3,011.10 = 1,342.66 : x
  2. Step 2: Convert to fraction form
    2,180.83/3,011.10 = 1,342.66/x
  3. Step 3: Cross multiply
    2,180.83x = 3,011.10 × 1,342.66
  4. Step 4: Simplify right side
    2,180.83x = 4,042,883.53
  5. Step 5: Solve for x
    x = 4,042,883.53/2,180.83
  6. Step 6: Final answer
    x = 1,853.83

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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.