Home / 1,761.45-2,427.88-1,263.30

Finding the Fourth Proportional to 1,761.45, 2,427.88 and 1,263.30

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Solution

The fourth proportional to 1,761.45, 2,427.88 and 1,263.30 is: 1,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.45 : 2,427.88 = 1,263.30 : x
  2. Step 2: Convert to fraction form
    1,761.45/2,427.88 = 1,263.30/x
  3. Step 3: Cross multiply
    1,761.45x = 2,427.88 × 1,263.30
  4. Step 4: Simplify right side
    1,761.45x = 3,067,140.80
  5. Step 5: Solve for x
    x = 3,067,140.80/1,761.45
  6. Step 6: Final answer
    x = 1,741.26

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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.