Home / 5,211.87-7,819.49-1,925.43

Finding the Fourth Proportional to 5,211.87, 7,819.49 and 1,925.43

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Solution

The fourth proportional to 5,211.87, 7,819.49 and 1,925.43 is: 2,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.87 : 7,819.49 = 1,925.43 : x
  2. Step 2: Convert to fraction form
    5,211.87/7,819.49 = 1,925.43/x
  3. Step 3: Cross multiply
    5,211.87x = 7,819.49 × 1,925.43
  4. Step 4: Simplify right side
    5,211.87x = 15,055,880.63
  5. Step 5: Solve for x
    x = 15,055,880.63/5,211.87
  6. Step 6: Final answer
    x = 2,888.77

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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.