Home / 3,870.66-5,815.49-2,484.57

Finding the Fourth Proportional to 3,870.66, 5,815.49 and 2,484.57

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Solution

The fourth proportional to 3,870.66, 5,815.49 and 2,484.57 is: 3,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.66 : 5,815.49 = 2,484.57 : x
  2. Step 2: Convert to fraction form
    3,870.66/5,815.49 = 2,484.57/x
  3. Step 3: Cross multiply
    3,870.66x = 5,815.49 × 2,484.57
  4. Step 4: Simplify right side
    3,870.66x = 14,448,979.57
  5. Step 5: Solve for x
    x = 14,448,979.57/3,870.66
  6. Step 6: Final answer
    x = 3,732.95

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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.