Home / 2,820.60-4,222.80-1,727.10

Finding the Fourth Proportional to 2,820.60, 4,222.80 and 1,727.10

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Solution

The fourth proportional to 2,820.60, 4,222.80 and 1,727.10 is: 2,585.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.60 : 4,222.80 = 1,727.10 : x
  2. Step 2: Convert to fraction form
    2,820.60/4,222.80 = 1,727.10/x
  3. Step 3: Cross multiply
    2,820.60x = 4,222.80 × 1,727.10
  4. Step 4: Simplify right side
    2,820.60x = 7,293,197.88
  5. Step 5: Solve for x
    x = 7,293,197.88/2,820.60
  6. Step 6: Final answer
    x = 2,585.69

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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.