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Finding the Fourth Proportional to 3,593.48, 4,959.05 and 1,978.57

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Solution

The fourth proportional to 3,593.48, 4,959.05 and 1,978.57 is: 2,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.48 : 4,959.05 = 1,978.57 : x
  2. Step 2: Convert to fraction form
    3,593.48/4,959.05 = 1,978.57/x
  3. Step 3: Cross multiply
    3,593.48x = 4,959.05 × 1,978.57
  4. Step 4: Simplify right side
    3,593.48x = 9,811,843.38
  5. Step 5: Solve for x
    x = 9,811,843.38/3,593.48
  6. Step 6: Final answer
    x = 2,730.45

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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.