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Finding the Fourth Proportional to 3,509.68, 4,843.36 and 1,937.76

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Solution

The fourth proportional to 3,509.68, 4,843.36 and 1,937.76 is: 2,674.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.68 : 4,843.36 = 1,937.76 : x
  2. Step 2: Convert to fraction form
    3,509.68/4,843.36 = 1,937.76/x
  3. Step 3: Cross multiply
    3,509.68x = 4,843.36 × 1,937.76
  4. Step 4: Simplify right side
    3,509.68x = 9,385,269.27
  5. Step 5: Solve for x
    x = 9,385,269.27/3,509.68
  6. Step 6: Final answer
    x = 2,674.11

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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.