Home / 2,280.19-3,146.68-1,336.54

Finding the Fourth Proportional to 2,280.19, 3,146.68 and 1,336.54

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Solution

The fourth proportional to 2,280.19, 3,146.68 and 1,336.54 is: 1,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.19 : 3,146.68 = 1,336.54 : x
  2. Step 2: Convert to fraction form
    2,280.19/3,146.68 = 1,336.54/x
  3. Step 3: Cross multiply
    2,280.19x = 3,146.68 × 1,336.54
  4. Step 4: Simplify right side
    2,280.19x = 4,205,663.69
  5. Step 5: Solve for x
    x = 4,205,663.69/2,280.19
  6. Step 6: Final answer
    x = 1,844.44

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Double scale
Find fourth proportional to 2,281.19, 3,148.06 and 1,337.54
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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.