Home / 1,324.31-1,827.55-800.34

Finding the Fourth Proportional to 1,324.31, 1,827.55 and 800.34

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Solution

The fourth proportional to 1,324.31, 1,827.55 and 800.34 is: 1,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.31 : 1,827.55 = 800.34 : x
  2. Step 2: Convert to fraction form
    1,324.31/1,827.55 = 800.34/x
  3. Step 3: Cross multiply
    1,324.31x = 1,827.55 × 800.34
  4. Step 4: Simplify right side
    1,324.31x = 1,462,661.37
  5. Step 5: Solve for x
    x = 1,462,661.37/1,324.31
  6. Step 6: Final answer
    x = 1,104.47

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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.