Home / 3,173.40-4,761.90-1,225.74

Finding the Fourth Proportional to 3,173.40, 4,761.90 and 1,225.74

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Solution

The fourth proportional to 3,173.40, 4,761.90 and 1,225.74 is: 1,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.40 : 4,761.90 = 1,225.74 : x
  2. Step 2: Convert to fraction form
    3,173.40/4,761.90 = 1,225.74/x
  3. Step 3: Cross multiply
    3,173.40x = 4,761.90 × 1,225.74
  4. Step 4: Simplify right side
    3,173.40x = 5,836,851.31
  5. Step 5: Solve for x
    x = 5,836,851.31/3,173.40
  6. Step 6: Final answer
    x = 1,839.31

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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.