Home / 2,812.35-4,214.85-1,252.83

Finding the Fourth Proportional to 2,812.35, 4,214.85 and 1,252.83

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Solution

The fourth proportional to 2,812.35, 4,214.85 and 1,252.83 is: 1,877.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.35 : 4,214.85 = 1,252.83 : x
  2. Step 2: Convert to fraction form
    2,812.35/4,214.85 = 1,252.83/x
  3. Step 3: Cross multiply
    2,812.35x = 4,214.85 × 1,252.83
  4. Step 4: Simplify right side
    2,812.35x = 5,280,490.53
  5. Step 5: Solve for x
    x = 5,280,490.53/2,812.35
  6. Step 6: Final answer
    x = 1,877.61

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1.5x scale

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.