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Finding the Fourth Proportional to 3,143.61, 4,716.63 and 2,934.63

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Solution

The fourth proportional to 3,143.61, 4,716.63 and 2,934.63 is: 4,403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.61 : 4,716.63 = 2,934.63 : x
  2. Step 2: Convert to fraction form
    3,143.61/4,716.63 = 2,934.63/x
  3. Step 3: Cross multiply
    3,143.61x = 4,716.63 × 2,934.63
  4. Step 4: Simplify right side
    3,143.61x = 13,841,563.90
  5. Step 5: Solve for x
    x = 13,841,563.90/3,143.61
  6. Step 6: Final answer
    x = 4,403.08

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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.