Home / 1,159.08-1,738.68-492.12

Finding the Fourth Proportional to 1,159.08, 1,738.68 and 492.12

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Solution

The fourth proportional to 1,159.08, 1,738.68 and 492.12 is: 738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.08 : 1,738.68 = 492.12 : x
  2. Step 2: Convert to fraction form
    1,159.08/1,738.68 = 492.12/x
  3. Step 3: Cross multiply
    1,159.08x = 1,738.68 × 492.12
  4. Step 4: Simplify right side
    1,159.08x = 855,639.20
  5. Step 5: Solve for x
    x = 855,639.20/1,159.08
  6. Step 6: Final answer
    x = 738.21

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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.