Home / 3,122.01-4,328.11-2,955.56

Finding the Fourth Proportional to 3,122.01, 4,328.11 and 2,955.56

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Solution

The fourth proportional to 3,122.01, 4,328.11 and 2,955.56 is: 4,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.01 : 4,328.11 = 2,955.56 : x
  2. Step 2: Convert to fraction form
    3,122.01/4,328.11 = 2,955.56/x
  3. Step 3: Cross multiply
    3,122.01x = 4,328.11 × 2,955.56
  4. Step 4: Simplify right side
    3,122.01x = 12,791,988.79
  5. Step 5: Solve for x
    x = 12,791,988.79/3,122.01
  6. Step 6: Final answer
    x = 4,097.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.