Home / 1,786.24-2,463.36-1,225.72

Finding the Fourth Proportional to 1,786.24, 2,463.36 and 1,225.72

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Solution

The fourth proportional to 1,786.24, 2,463.36 and 1,225.72 is: 1,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.24 : 2,463.36 = 1,225.72 : x
  2. Step 2: Convert to fraction form
    1,786.24/2,463.36 = 1,225.72/x
  3. Step 3: Cross multiply
    1,786.24x = 2,463.36 × 1,225.72
  4. Step 4: Simplify right side
    1,786.24x = 3,019,377.30
  5. Step 5: Solve for x
    x = 3,019,377.30/1,786.24
  6. Step 6: Final answer
    x = 1,690.36

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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.