Home / 2,171.74-3,255.31-1,130.70

Finding the Fourth Proportional to 2,171.74, 3,255.31 and 1,130.70

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Solution

The fourth proportional to 2,171.74, 3,255.31 and 1,130.70 is: 1,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.74 : 3,255.31 = 1,130.70 : x
  2. Step 2: Convert to fraction form
    2,171.74/3,255.31 = 1,130.70/x
  3. Step 3: Cross multiply
    2,171.74x = 3,255.31 × 1,130.70
  4. Step 4: Simplify right side
    2,171.74x = 3,680,779.02
  5. Step 5: Solve for x
    x = 3,680,779.02/2,171.74
  6. Step 6: Final answer
    x = 1,694.85

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1.5x scale

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.