Home / 2,827.50-4,240.05-1,072.20

Finding the Fourth Proportional to 2,827.50, 4,240.05 and 1,072.20

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Solution

The fourth proportional to 2,827.50, 4,240.05 and 1,072.20 is: 1,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.50 : 4,240.05 = 1,072.20 : x
  2. Step 2: Convert to fraction form
    2,827.50/4,240.05 = 1,072.20/x
  3. Step 3: Cross multiply
    2,827.50x = 4,240.05 × 1,072.20
  4. Step 4: Simplify right side
    2,827.50x = 4,546,181.61
  5. Step 5: Solve for x
    x = 4,546,181.61/2,827.50
  6. Step 6: Final answer
    x = 1,607.84

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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.