Home / 1,356.10-1,869.30-1,023.97

Finding the Fourth Proportional to 1,356.10, 1,869.30 and 1,023.97

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Solution

The fourth proportional to 1,356.10, 1,869.30 and 1,023.97 is: 1,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.10 : 1,869.30 = 1,023.97 : x
  2. Step 2: Convert to fraction form
    1,356.10/1,869.30 = 1,023.97/x
  3. Step 3: Cross multiply
    1,356.10x = 1,869.30 × 1,023.97
  4. Step 4: Simplify right side
    1,356.10x = 1,914,107.12
  5. Step 5: Solve for x
    x = 1,914,107.12/1,356.10
  6. Step 6: Final answer
    x = 1,411.48

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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.