Home / 5,122.70-7,069.23-3,133.11

Finding the Fourth Proportional to 5,122.70, 7,069.23 and 3,133.11

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Solution

The fourth proportional to 5,122.70, 7,069.23 and 3,133.11 is: 4,323.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.70 : 7,069.23 = 3,133.11 : x
  2. Step 2: Convert to fraction form
    5,122.70/7,069.23 = 3,133.11/x
  3. Step 3: Cross multiply
    5,122.70x = 7,069.23 × 3,133.11
  4. Step 4: Simplify right side
    5,122.70x = 22,148,675.21
  5. Step 5: Solve for x
    x = 22,148,675.21/5,122.70
  6. Step 6: Final answer
    x = 4,323.63

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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.