Home / 1,155.11-1,730.36-1,060.61

Finding the Fourth Proportional to 1,155.11, 1,730.36 and 1,060.61

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Solution

The fourth proportional to 1,155.11, 1,730.36 and 1,060.61 is: 1,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.11 : 1,730.36 = 1,060.61 : x
  2. Step 2: Convert to fraction form
    1,155.11/1,730.36 = 1,060.61/x
  3. Step 3: Cross multiply
    1,155.11x = 1,730.36 × 1,060.61
  4. Step 4: Simplify right side
    1,155.11x = 1,835,231.12
  5. Step 5: Solve for x
    x = 1,835,231.12/1,155.11
  6. Step 6: Final answer
    x = 1,588.80

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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.