Home / 3,237.79-4,468.26-1,978.69

Finding the Fourth Proportional to 3,237.79, 4,468.26 and 1,978.69

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Solution

The fourth proportional to 3,237.79, 4,468.26 and 1,978.69 is: 2,730.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.79 : 4,468.26 = 1,978.69 : x
  2. Step 2: Convert to fraction form
    3,237.79/4,468.26 = 1,978.69/x
  3. Step 3: Cross multiply
    3,237.79x = 4,468.26 × 1,978.69
  4. Step 4: Simplify right side
    3,237.79x = 8,841,301.38
  5. Step 5: Solve for x
    x = 8,841,301.38/3,237.79
  6. Step 6: Final answer
    x = 2,730.66

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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.