Home / 1,963.40-2,709.45-1,079.19

Finding the Fourth Proportional to 1,963.40, 2,709.45 and 1,079.19

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Solution

The fourth proportional to 1,963.40, 2,709.45 and 1,079.19 is: 1,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.40 : 2,709.45 = 1,079.19 : x
  2. Step 2: Convert to fraction form
    1,963.40/2,709.45 = 1,079.19/x
  3. Step 3: Cross multiply
    1,963.40x = 2,709.45 × 1,079.19
  4. Step 4: Simplify right side
    1,963.40x = 2,924,011.35
  5. Step 5: Solve for x
    x = 2,924,011.35/1,963.40
  6. Step 6: Final answer
    x = 1,489.26

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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.