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Finding the Fourth Proportional to 1,301.47, 1,795.39 and 886.75

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Solution

The fourth proportional to 1,301.47, 1,795.39 and 886.75 is: 1,223.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.47 : 1,795.39 = 886.75 : x
  2. Step 2: Convert to fraction form
    1,301.47/1,795.39 = 886.75/x
  3. Step 3: Cross multiply
    1,301.47x = 1,795.39 × 886.75
  4. Step 4: Simplify right side
    1,301.47x = 1,592,062.08
  5. Step 5: Solve for x
    x = 1,592,062.08/1,301.47
  6. Step 6: Final answer
    x = 1,223.28

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1.5x scale

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.