Home / 2,863.30-4,290.90-1,764.40

Finding the Fourth Proportional to 2,863.30, 4,290.90 and 1,764.40

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Solution

The fourth proportional to 2,863.30, 4,290.90 and 1,764.40 is: 2,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.30 : 4,290.90 = 1,764.40 : x
  2. Step 2: Convert to fraction form
    2,863.30/4,290.90 = 1,764.40/x
  3. Step 3: Cross multiply
    2,863.30x = 4,290.90 × 1,764.40
  4. Step 4: Simplify right side
    2,863.30x = 7,570,863.96
  5. Step 5: Solve for x
    x = 7,570,863.96/2,863.30
  6. Step 6: Final answer
    x = 2,644.10

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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.