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Finding the Fourth Proportional to 1,170.01, 1,748.21 and 886.71

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Solution

The fourth proportional to 1,170.01, 1,748.21 and 886.71 is: 1,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.01 : 1,748.21 = 886.71 : x
  2. Step 2: Convert to fraction form
    1,170.01/1,748.21 = 886.71/x
  3. Step 3: Cross multiply
    1,170.01x = 1,748.21 × 886.71
  4. Step 4: Simplify right side
    1,170.01x = 1,550,155.29
  5. Step 5: Solve for x
    x = 1,550,155.29/1,170.01
  6. Step 6: Final answer
    x = 1,324.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.