Home / 1,965.15-2,711.58-1,302.90

Finding the Fourth Proportional to 1,965.15, 2,711.58 and 1,302.90

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Solution

The fourth proportional to 1,965.15, 2,711.58 and 1,302.90 is: 1,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.15 : 2,711.58 = 1,302.90 : x
  2. Step 2: Convert to fraction form
    1,965.15/2,711.58 = 1,302.90/x
  3. Step 3: Cross multiply
    1,965.15x = 2,711.58 × 1,302.90
  4. Step 4: Simplify right side
    1,965.15x = 3,532,917.58
  5. Step 5: Solve for x
    x = 3,532,917.58/1,965.15
  6. Step 6: Final answer
    x = 1,797.79

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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.