Home / 3,509.75-4,843.40-1,937.81

Finding the Fourth Proportional to 3,509.75, 4,843.40 and 1,937.81

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Solution

The fourth proportional to 3,509.75, 4,843.40 and 1,937.81 is: 2,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.75 : 4,843.40 = 1,937.81 : x
  2. Step 2: Convert to fraction form
    3,509.75/4,843.40 = 1,937.81/x
  3. Step 3: Cross multiply
    3,509.75x = 4,843.40 × 1,937.81
  4. Step 4: Simplify right side
    3,509.75x = 9,385,591.37
  5. Step 5: Solve for x
    x = 9,385,591.37/3,509.75
  6. Step 6: Final answer
    x = 2,674.15

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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.