Home / 1,155.06-1,733.62-539.11

Finding the Fourth Proportional to 1,155.06, 1,733.62 and 539.11

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Solution

The fourth proportional to 1,155.06, 1,733.62 and 539.11 is: 809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.06 : 1,733.62 = 539.11 : x
  2. Step 2: Convert to fraction form
    1,155.06/1,733.62 = 539.11/x
  3. Step 3: Cross multiply
    1,155.06x = 1,733.62 × 539.11
  4. Step 4: Simplify right side
    1,155.06x = 934,611.88
  5. Step 5: Solve for x
    x = 934,611.88/1,155.06
  6. Step 6: Final answer
    x = 809.15

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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.