Home / 1,863.20-2,794.80-1,207.10

Finding the Fourth Proportional to 1,863.20, 2,794.80 and 1,207.10

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Solution

The fourth proportional to 1,863.20, 2,794.80 and 1,207.10 is: 1,810.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.20 : 2,794.80 = 1,207.10 : x
  2. Step 2: Convert to fraction form
    1,863.20/2,794.80 = 1,207.10/x
  3. Step 3: Cross multiply
    1,863.20x = 2,794.80 × 1,207.10
  4. Step 4: Simplify right side
    1,863.20x = 3,373,603.08
  5. Step 5: Solve for x
    x = 3,373,603.08/1,863.20
  6. Step 6: Final answer
    x = 1,810.65

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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.