Home / 1,088.07-1,632.14-318.57

Finding the Fourth Proportional to 1,088.07, 1,632.14 and 318.57

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Solution

The fourth proportional to 1,088.07, 1,632.14 and 318.57 is: 477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.07 : 1,632.14 = 318.57 : x
  2. Step 2: Convert to fraction form
    1,088.07/1,632.14 = 318.57/x
  3. Step 3: Cross multiply
    1,088.07x = 1,632.14 × 318.57
  4. Step 4: Simplify right side
    1,088.07x = 519,949.25
  5. Step 5: Solve for x
    x = 519,949.25/1,088.07
  6. Step 6: Final answer
    x = 477.86

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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.