Home / 1,531.06-2,112.51-1,034.62

Finding the Fourth Proportional to 1,531.06, 2,112.51 and 1,034.62

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Solution

The fourth proportional to 1,531.06, 2,112.51 and 1,034.62 is: 1,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.06 : 2,112.51 = 1,034.62 : x
  2. Step 2: Convert to fraction form
    1,531.06/2,112.51 = 1,034.62/x
  3. Step 3: Cross multiply
    1,531.06x = 2,112.51 × 1,034.62
  4. Step 4: Simplify right side
    1,531.06x = 2,185,645.10
  5. Step 5: Solve for x
    x = 2,185,645.10/1,531.06
  6. Step 6: Final answer
    x = 1,427.54

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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.