Home / 1,632.90-2,446.26-810.20

Finding the Fourth Proportional to 1,632.90, 2,446.26 and 810.20

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Solution

The fourth proportional to 1,632.90, 2,446.26 and 810.20 is: 1,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.90 : 2,446.26 = 810.20 : x
  2. Step 2: Convert to fraction form
    1,632.90/2,446.26 = 810.20/x
  3. Step 3: Cross multiply
    1,632.90x = 2,446.26 × 810.20
  4. Step 4: Simplify right side
    1,632.90x = 1,981,959.85
  5. Step 5: Solve for x
    x = 1,981,959.85/1,632.90
  6. Step 6: Final answer
    x = 1,213.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.