Home / 1,959.88-2,935.90-1,135.72

Finding the Fourth Proportional to 1,959.88, 2,935.90 and 1,135.72

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Solution

The fourth proportional to 1,959.88, 2,935.90 and 1,135.72 is: 1,701.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.88 : 2,935.90 = 1,135.72 : x
  2. Step 2: Convert to fraction form
    1,959.88/2,935.90 = 1,135.72/x
  3. Step 3: Cross multiply
    1,959.88x = 2,935.90 × 1,135.72
  4. Step 4: Simplify right side
    1,959.88x = 3,334,360.35
  5. Step 5: Solve for x
    x = 3,334,360.35/1,959.88
  6. Step 6: Final answer
    x = 1,701.31

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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.