Home / 1,088.30-1,632.45-394.83

Finding the Fourth Proportional to 1,088.30, 1,632.45 and 394.83

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Solution

The fourth proportional to 1,088.30, 1,632.45 and 394.83 is: 592.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.30 : 1,632.45 = 394.83 : x
  2. Step 2: Convert to fraction form
    1,088.30/1,632.45 = 394.83/x
  3. Step 3: Cross multiply
    1,088.30x = 1,632.45 × 394.83
  4. Step 4: Simplify right side
    1,088.30x = 644,546.36
  5. Step 5: Solve for x
    x = 644,546.36/1,088.30
  6. Step 6: Final answer
    x = 592.25

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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.