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Finding the Fourth Proportional to 3,509.56, 4,843.14 and 1,937.80

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Solution

The fourth proportional to 3,509.56, 4,843.14 and 1,937.80 is: 2,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.56 : 4,843.14 = 1,937.80 : x
  2. Step 2: Convert to fraction form
    3,509.56/4,843.14 = 1,937.80/x
  3. Step 3: Cross multiply
    3,509.56x = 4,843.14 × 1,937.80
  4. Step 4: Simplify right side
    3,509.56x = 9,385,036.69
  5. Step 5: Solve for x
    x = 9,385,036.69/3,509.56
  6. Step 6: Final answer
    x = 2,674.13

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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.