Home / 4,809.15-6,637.19-2,819.70

Finding the Fourth Proportional to 4,809.15, 6,637.19 and 2,819.70

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Solution

The fourth proportional to 4,809.15, 6,637.19 and 2,819.70 is: 3,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.15 : 6,637.19 = 2,819.70 : x
  2. Step 2: Convert to fraction form
    4,809.15/6,637.19 = 2,819.70/x
  3. Step 3: Cross multiply
    4,809.15x = 6,637.19 × 2,819.70
  4. Step 4: Simplify right side
    4,809.15x = 18,714,870.54
  5. Step 5: Solve for x
    x = 18,714,870.54/4,809.15
  6. Step 6: Final answer
    x = 3,891.51

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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.