Home / 1,949.68-2,690.56-1,065.48

Finding the Fourth Proportional to 1,949.68, 2,690.56 and 1,065.48

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Solution

The fourth proportional to 1,949.68, 2,690.56 and 1,065.48 is: 1,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.68 : 2,690.56 = 1,065.48 : x
  2. Step 2: Convert to fraction form
    1,949.68/2,690.56 = 1,065.48/x
  3. Step 3: Cross multiply
    1,949.68x = 2,690.56 × 1,065.48
  4. Step 4: Simplify right side
    1,949.68x = 2,866,737.87
  5. Step 5: Solve for x
    x = 2,866,737.87/1,949.68
  6. Step 6: Final answer
    x = 1,470.36

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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.