Home / 5,223.76-7,835.56-2,103.70

Finding the Fourth Proportional to 5,223.76, 7,835.56 and 2,103.70

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Solution

The fourth proportional to 5,223.76, 7,835.56 and 2,103.70 is: 3,155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.76 : 7,835.56 = 2,103.70 : x
  2. Step 2: Convert to fraction form
    5,223.76/7,835.56 = 2,103.70/x
  3. Step 3: Cross multiply
    5,223.76x = 7,835.56 × 2,103.70
  4. Step 4: Simplify right side
    5,223.76x = 16,483,628.39
  5. Step 5: Solve for x
    x = 16,483,628.39/5,223.76
  6. Step 6: Final answer
    x = 3,155.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.