Home / 3,709.70-5,117.28-2,137.52

Finding the Fourth Proportional to 3,709.70, 5,117.28 and 2,137.52

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Solution

The fourth proportional to 3,709.70, 5,117.28 and 2,137.52 is: 2,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.70 : 5,117.28 = 2,137.52 : x
  2. Step 2: Convert to fraction form
    3,709.70/5,117.28 = 2,137.52/x
  3. Step 3: Cross multiply
    3,709.70x = 5,117.28 × 2,137.52
  4. Step 4: Simplify right side
    3,709.70x = 10,938,288.35
  5. Step 5: Solve for x
    x = 10,938,288.35/3,709.70
  6. Step 6: Final answer
    x = 2,948.56

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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.