Home / 1,786.38-2,465.20-1,000.43

Finding the Fourth Proportional to 1,786.38, 2,465.20 and 1,000.43

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Solution

The fourth proportional to 1,786.38, 2,465.20 and 1,000.43 is: 1,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.38 : 2,465.20 = 1,000.43 : x
  2. Step 2: Convert to fraction form
    1,786.38/2,465.20 = 1,000.43/x
  3. Step 3: Cross multiply
    1,786.38x = 2,465.20 × 1,000.43
  4. Step 4: Simplify right side
    1,786.38x = 2,466,260.04
  5. Step 5: Solve for x
    x = 2,466,260.04/1,786.38
  6. Step 6: Final answer
    x = 1,380.59

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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.