Home / 3,519.04-4,855.88-1,947

Finding the Fourth Proportional to 3,519.04, 4,855.88 and 1,947

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Solution

The fourth proportional to 3,519.04, 4,855.88 and 1,947 is: 2,686.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.04 : 4,855.88 = 1,947 : x
  2. Step 2: Convert to fraction form
    3,519.04/4,855.88 = 1,947/x
  3. Step 3: Cross multiply
    3,519.04x = 4,855.88 × 1,947
  4. Step 4: Simplify right side
    3,519.04x = 9,454,398.36
  5. Step 5: Solve for x
    x = 9,454,398.36/3,519.04
  6. Step 6: Final answer
    x = 2,686.64

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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.