Home / 1,192.65-1,778.91-1,156.20

Finding the Fourth Proportional to 1,192.65, 1,778.91 and 1,156.20

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Solution

The fourth proportional to 1,192.65, 1,778.91 and 1,156.20 is: 1,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.65 : 1,778.91 = 1,156.20 : x
  2. Step 2: Convert to fraction form
    1,192.65/1,778.91 = 1,156.20/x
  3. Step 3: Cross multiply
    1,192.65x = 1,778.91 × 1,156.20
  4. Step 4: Simplify right side
    1,192.65x = 2,056,766.85
  5. Step 5: Solve for x
    x = 2,056,766.85/1,192.65
  6. Step 6: Final answer
    x = 1,724.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.