Home / 1,250.31-1,866.54-1,086.33

Finding the Fourth Proportional to 1,250.31, 1,866.54 and 1,086.33

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Solution

The fourth proportional to 1,250.31, 1,866.54 and 1,086.33 is: 1,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.31 : 1,866.54 = 1,086.33 : x
  2. Step 2: Convert to fraction form
    1,250.31/1,866.54 = 1,086.33/x
  3. Step 3: Cross multiply
    1,250.31x = 1,866.54 × 1,086.33
  4. Step 4: Simplify right side
    1,250.31x = 2,027,678.40
  5. Step 5: Solve for x
    x = 2,027,678.40/1,250.31
  6. Step 6: Final answer
    x = 1,621.74

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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.