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Finding the Fourth Proportional to 3,253.29, 4,879.95 and 788.11

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Solution

The fourth proportional to 3,253.29, 4,879.95 and 788.11 is: 1,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.29 : 4,879.95 = 788.11 : x
  2. Step 2: Convert to fraction form
    3,253.29/4,879.95 = 788.11/x
  3. Step 3: Cross multiply
    3,253.29x = 4,879.95 × 788.11
  4. Step 4: Simplify right side
    3,253.29x = 3,845,922.24
  5. Step 5: Solve for x
    x = 3,845,922.24/3,253.29
  6. Step 6: Final answer
    x = 1,182.17

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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.