Home / 4,211.71-5,812.15-2,419.31

Finding the Fourth Proportional to 4,211.71, 5,812.15 and 2,419.31

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Solution

The fourth proportional to 4,211.71, 5,812.15 and 2,419.31 is: 3,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.71 : 5,812.15 = 2,419.31 : x
  2. Step 2: Convert to fraction form
    4,211.71/5,812.15 = 2,419.31/x
  3. Step 3: Cross multiply
    4,211.71x = 5,812.15 × 2,419.31
  4. Step 4: Simplify right side
    4,211.71x = 14,061,351.46
  5. Step 5: Solve for x
    x = 14,061,351.46/4,211.71
  6. Step 6: Final answer
    x = 3,338.63

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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.