Home / 5,133.70-7,083.19-3,143.53

Finding the Fourth Proportional to 5,133.70, 7,083.19 and 3,143.53

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Solution

The fourth proportional to 5,133.70, 7,083.19 and 3,143.53 is: 4,337.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.70 : 7,083.19 = 3,143.53 : x
  2. Step 2: Convert to fraction form
    5,133.70/7,083.19 = 3,143.53/x
  3. Step 3: Cross multiply
    5,133.70x = 7,083.19 × 3,143.53
  4. Step 4: Simplify right side
    5,133.70x = 22,266,220.26
  5. Step 5: Solve for x
    x = 22,266,220.26/5,133.70
  6. Step 6: Final answer
    x = 4,337.27

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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.