Home / 4,748.55-7,125.71-2,151.51

Finding the Fourth Proportional to 4,748.55, 7,125.71 and 2,151.51

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Solution

The fourth proportional to 4,748.55, 7,125.71 and 2,151.51 is: 3,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.55 : 7,125.71 = 2,151.51 : x
  2. Step 2: Convert to fraction form
    4,748.55/7,125.71 = 2,151.51/x
  3. Step 3: Cross multiply
    4,748.55x = 7,125.71 × 2,151.51
  4. Step 4: Simplify right side
    4,748.55x = 15,331,025.56
  5. Step 5: Solve for x
    x = 15,331,025.56/4,748.55
  6. Step 6: Final answer
    x = 3,228.57

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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.