Home / 2,348.67-3,240.10-1,353.69

Finding the Fourth Proportional to 2,348.67, 3,240.10 and 1,353.69

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Solution

The fourth proportional to 2,348.67, 3,240.10 and 1,353.69 is: 1,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.67 : 3,240.10 = 1,353.69 : x
  2. Step 2: Convert to fraction form
    2,348.67/3,240.10 = 1,353.69/x
  3. Step 3: Cross multiply
    2,348.67x = 3,240.10 × 1,353.69
  4. Step 4: Simplify right side
    2,348.67x = 4,386,090.97
  5. Step 5: Solve for x
    x = 4,386,090.97/2,348.67
  6. Step 6: Final answer
    x = 1,867.48

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Half scale
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Double scale
Find fourth proportional to 2,349.67, 3,241.48 and 1,354.69
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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.