Home / 3,122.56-4,302.57-2,126.08

Finding the Fourth Proportional to 3,122.56, 4,302.57 and 2,126.08

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Solution

The fourth proportional to 3,122.56, 4,302.57 and 2,126.08 is: 2,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.56 : 4,302.57 = 2,126.08 : x
  2. Step 2: Convert to fraction form
    3,122.56/4,302.57 = 2,126.08/x
  3. Step 3: Cross multiply
    3,122.56x = 4,302.57 × 2,126.08
  4. Step 4: Simplify right side
    3,122.56x = 9,147,608.03
  5. Step 5: Solve for x
    x = 9,147,608.03/3,122.56
  6. Step 6: Final answer
    x = 2,929.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.