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Finding the Fourth Proportional to 3,243.60, 4,865.04 and 935.10

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Solution

The fourth proportional to 3,243.60, 4,865.04 and 935.10 is: 1,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.60 : 4,865.04 = 935.10 : x
  2. Step 2: Convert to fraction form
    3,243.60/4,865.04 = 935.10/x
  3. Step 3: Cross multiply
    3,243.60x = 4,865.04 × 935.10
  4. Step 4: Simplify right side
    3,243.60x = 4,549,298.90
  5. Step 5: Solve for x
    x = 4,549,298.90/3,243.60
  6. Step 6: Final answer
    x = 1,402.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.