Home / 2,181.97-3,011.02-1,237.74

Finding the Fourth Proportional to 2,181.97, 3,011.02 and 1,237.74

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Solution

The fourth proportional to 2,181.97, 3,011.02 and 1,237.74 is: 1,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.97 : 3,011.02 = 1,237.74 : x
  2. Step 2: Convert to fraction form
    2,181.97/3,011.02 = 1,237.74/x
  3. Step 3: Cross multiply
    2,181.97x = 3,011.02 × 1,237.74
  4. Step 4: Simplify right side
    2,181.97x = 3,726,867.13
  5. Step 5: Solve for x
    x = 3,726,867.13/2,181.97
  6. Step 6: Final answer
    x = 1,708.03

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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.