Home / 3,449.64-4,763.14-2,820.84

Finding the Fourth Proportional to 3,449.64, 4,763.14 and 2,820.84

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Solution

The fourth proportional to 3,449.64, 4,763.14 and 2,820.84 is: 3,894.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.64 : 4,763.14 = 2,820.84 : x
  2. Step 2: Convert to fraction form
    3,449.64/4,763.14 = 2,820.84/x
  3. Step 3: Cross multiply
    3,449.64x = 4,763.14 × 2,820.84
  4. Step 4: Simplify right side
    3,449.64x = 13,436,055.84
  5. Step 5: Solve for x
    x = 13,436,055.84/3,449.64
  6. Step 6: Final answer
    x = 3,894.92

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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.