Home / 1,019.29-1,528.91-325.95

Finding the Fourth Proportional to 1,019.29, 1,528.91 and 325.95

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Solution

The fourth proportional to 1,019.29, 1,528.91 and 325.95 is: 488.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019.29 : 1,528.91 = 325.95 : x
  2. Step 2: Convert to fraction form
    1,019.29/1,528.91 = 325.95/x
  3. Step 3: Cross multiply
    1,019.29x = 1,528.91 × 325.95
  4. Step 4: Simplify right side
    1,019.29x = 498,348.21
  5. Step 5: Solve for x
    x = 498,348.21/1,019.29
  6. Step 6: Final answer
    x = 488.92

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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.