Home / 5,211.42-7,812.27-1,923.63

Finding the Fourth Proportional to 5,211.42, 7,812.27 and 1,923.63

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Solution

The fourth proportional to 5,211.42, 7,812.27 and 1,923.63 is: 2,883.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.42 : 7,812.27 = 1,923.63 : x
  2. Step 2: Convert to fraction form
    5,211.42/7,812.27 = 1,923.63/x
  3. Step 3: Cross multiply
    5,211.42x = 7,812.27 × 1,923.63
  4. Step 4: Simplify right side
    5,211.42x = 15,027,916.94
  5. Step 5: Solve for x
    x = 15,027,916.94/5,211.42
  6. Step 6: Final answer
    x = 2,883.65

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1.5x scale

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.