Home / 2,815.02-4,223.34-1,517.40

Finding the Fourth Proportional to 2,815.02, 4,223.34 and 1,517.40

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Solution

The fourth proportional to 2,815.02, 4,223.34 and 1,517.40 is: 2,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.02 : 4,223.34 = 1,517.40 : x
  2. Step 2: Convert to fraction form
    2,815.02/4,223.34 = 1,517.40/x
  3. Step 3: Cross multiply
    2,815.02x = 4,223.34 × 1,517.40
  4. Step 4: Simplify right side
    2,815.02x = 6,408,496.12
  5. Step 5: Solve for x
    x = 6,408,496.12/2,815.02
  6. Step 6: Final answer
    x = 2,276.54

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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.