Home / 1,324.19-1,827.60-800.30

Finding the Fourth Proportional to 1,324.19, 1,827.60 and 800.30

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Solution

The fourth proportional to 1,324.19, 1,827.60 and 800.30 is: 1,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.19 : 1,827.60 = 800.30 : x
  2. Step 2: Convert to fraction form
    1,324.19/1,827.60 = 800.30/x
  3. Step 3: Cross multiply
    1,324.19x = 1,827.60 × 800.30
  4. Step 4: Simplify right side
    1,324.19x = 1,462,628.28
  5. Step 5: Solve for x
    x = 1,462,628.28/1,324.19
  6. Step 6: Final answer
    x = 1,104.55

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Half scale
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Double scale
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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.