Home / 1,632.18-2,445.30-809.22

Finding the Fourth Proportional to 1,632.18, 2,445.30 and 809.22

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Solution

The fourth proportional to 1,632.18, 2,445.30 and 809.22 is: 1,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,632.18 : 2,445.30 = 809.22 : x
  2. Step 2: Convert to fraction form
    1,632.18/2,445.30 = 809.22/x
  3. Step 3: Cross multiply
    1,632.18x = 2,445.30 × 809.22
  4. Step 4: Simplify right side
    1,632.18x = 1,978,785.67
  5. Step 5: Solve for x
    x = 1,978,785.67/1,632.18
  6. Step 6: Final answer
    x = 1,212.36

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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.