Home / 3,087.52-4,261.02-1,761.20

Finding the Fourth Proportional to 3,087.52, 4,261.02 and 1,761.20

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Solution

The fourth proportional to 3,087.52, 4,261.02 and 1,761.20 is: 2,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.52 : 4,261.02 = 1,761.20 : x
  2. Step 2: Convert to fraction form
    3,087.52/4,261.02 = 1,761.20/x
  3. Step 3: Cross multiply
    3,087.52x = 4,261.02 × 1,761.20
  4. Step 4: Simplify right side
    3,087.52x = 7,504,487.12
  5. Step 5: Solve for x
    x = 7,504,487.12/3,087.52
  6. Step 6: Final answer
    x = 2,430.59

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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.