Home / 3,819.04-5,269.84-2,140.32

Finding the Fourth Proportional to 3,819.04, 5,269.84 and 2,140.32

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Solution

The fourth proportional to 3,819.04, 5,269.84 and 2,140.32 is: 2,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.04 : 5,269.84 = 2,140.32 : x
  2. Step 2: Convert to fraction form
    3,819.04/5,269.84 = 2,140.32/x
  3. Step 3: Cross multiply
    3,819.04x = 5,269.84 × 2,140.32
  4. Step 4: Simplify right side
    3,819.04x = 11,279,143.95
  5. Step 5: Solve for x
    x = 11,279,143.95/3,819.04
  6. Step 6: Final answer
    x = 2,953.40

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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.