Home / 3,230.20-4,458.53-1,904.79

Finding the Fourth Proportional to 3,230.20, 4,458.53 and 1,904.79

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Solution

The fourth proportional to 3,230.20, 4,458.53 and 1,904.79 is: 2,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.20 : 4,458.53 = 1,904.79 : x
  2. Step 2: Convert to fraction form
    3,230.20/4,458.53 = 1,904.79/x
  3. Step 3: Cross multiply
    3,230.20x = 4,458.53 × 1,904.79
  4. Step 4: Simplify right side
    3,230.20x = 8,492,531.54
  5. Step 5: Solve for x
    x = 8,492,531.54/3,230.20
  6. Step 6: Final answer
    x = 2,629.10

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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.