Home / 2,874.18-4,312.24-1,230.80

Finding the Fourth Proportional to 2,874.18, 4,312.24 and 1,230.80

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Solution

The fourth proportional to 2,874.18, 4,312.24 and 1,230.80 is: 1,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.18 : 4,312.24 = 1,230.80 : x
  2. Step 2: Convert to fraction form
    2,874.18/4,312.24 = 1,230.80/x
  3. Step 3: Cross multiply
    2,874.18x = 4,312.24 × 1,230.80
  4. Step 4: Simplify right side
    2,874.18x = 5,307,480.35
  5. Step 5: Solve for x
    x = 5,307,480.35/2,874.18
  6. Step 6: Final answer
    x = 1,846.60

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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.