Home / 1,150.35-1,587.84-1,091.57

Finding the Fourth Proportional to 1,150.35, 1,587.84 and 1,091.57

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Solution

The fourth proportional to 1,150.35, 1,587.84 and 1,091.57 is: 1,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.35 : 1,587.84 = 1,091.57 : x
  2. Step 2: Convert to fraction form
    1,150.35/1,587.84 = 1,091.57/x
  3. Step 3: Cross multiply
    1,150.35x = 1,587.84 × 1,091.57
  4. Step 4: Simplify right side
    1,150.35x = 1,733,230.57
  5. Step 5: Solve for x
    x = 1,733,230.57/1,150.35
  6. Step 6: Final answer
    x = 1,506.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.