Home / 1,891.78-2,610.51-1,052.47

Finding the Fourth Proportional to 1,891.78, 2,610.51 and 1,052.47

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Solution

The fourth proportional to 1,891.78, 2,610.51 and 1,052.47 is: 1,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.78 : 2,610.51 = 1,052.47 : x
  2. Step 2: Convert to fraction form
    1,891.78/2,610.51 = 1,052.47/x
  3. Step 3: Cross multiply
    1,891.78x = 2,610.51 × 1,052.47
  4. Step 4: Simplify right side
    1,891.78x = 2,747,483.46
  5. Step 5: Solve for x
    x = 2,747,483.46/1,891.78
  6. Step 6: Final answer
    x = 1,452.33

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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.