Home / 2,122.48-2,929.03-1,178.29

Finding the Fourth Proportional to 2,122.48, 2,929.03 and 1,178.29

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Solution

The fourth proportional to 2,122.48, 2,929.03 and 1,178.29 is: 1,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.48 : 2,929.03 = 1,178.29 : x
  2. Step 2: Convert to fraction form
    2,122.48/2,929.03 = 1,178.29/x
  3. Step 3: Cross multiply
    2,122.48x = 2,929.03 × 1,178.29
  4. Step 4: Simplify right side
    2,122.48x = 3,451,226.22
  5. Step 5: Solve for x
    x = 3,451,226.22/2,122.48
  6. Step 6: Final answer
    x = 1,626.04

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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.