Home / 1,816.29-2,506.52-1,286.12

Finding the Fourth Proportional to 1,816.29, 2,506.52 and 1,286.12

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Solution

The fourth proportional to 1,816.29, 2,506.52 and 1,286.12 is: 1,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.29 : 2,506.52 = 1,286.12 : x
  2. Step 2: Convert to fraction form
    1,816.29/2,506.52 = 1,286.12/x
  3. Step 3: Cross multiply
    1,816.29x = 2,506.52 × 1,286.12
  4. Step 4: Simplify right side
    1,816.29x = 3,223,694.98
  5. Step 5: Solve for x
    x = 3,223,694.98/1,816.29
  6. Step 6: Final answer
    x = 1,774.88

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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.