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Finding the Fourth Proportional to 4,838.88, 6,691.05 and 3,842.40

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Solution

The fourth proportional to 4,838.88, 6,691.05 and 3,842.40 is: 5,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,838.88 : 6,691.05 = 3,842.40 : x
  2. Step 2: Convert to fraction form
    4,838.88/6,691.05 = 3,842.40/x
  3. Step 3: Cross multiply
    4,838.88x = 6,691.05 × 3,842.40
  4. Step 4: Simplify right side
    4,838.88x = 25,709,690.52
  5. Step 5: Solve for x
    x = 25,709,690.52/4,838.88
  6. Step 6: Final answer
    x = 5,313.15

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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.