Home / 1,965.30-2,711.28-1,168.53

Finding the Fourth Proportional to 1,965.30, 2,711.28 and 1,168.53

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Solution

The fourth proportional to 1,965.30, 2,711.28 and 1,168.53 is: 1,612.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.30 : 2,711.28 = 1,168.53 : x
  2. Step 2: Convert to fraction form
    1,965.30/2,711.28 = 1,168.53/x
  3. Step 3: Cross multiply
    1,965.30x = 2,711.28 × 1,168.53
  4. Step 4: Simplify right side
    1,965.30x = 3,168,212.02
  5. Step 5: Solve for x
    x = 3,168,212.02/1,965.30
  6. Step 6: Final answer
    x = 1,612.08

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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.