Home / 2,281.90-3,425.02-1,187.06

Finding the Fourth Proportional to 2,281.90, 3,425.02 and 1,187.06

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Solution

The fourth proportional to 2,281.90, 3,425.02 and 1,187.06 is: 1,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.90 : 3,425.02 = 1,187.06 : x
  2. Step 2: Convert to fraction form
    2,281.90/3,425.02 = 1,187.06/x
  3. Step 3: Cross multiply
    2,281.90x = 3,425.02 × 1,187.06
  4. Step 4: Simplify right side
    2,281.90x = 4,065,704.24
  5. Step 5: Solve for x
    x = 4,065,704.24/2,281.90
  6. Step 6: Final answer
    x = 1,781.72

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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.