Home / 2,873.60-4,300.80-2,643.20

Finding the Fourth Proportional to 2,873.60, 4,300.80 and 2,643.20

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Solution

The fourth proportional to 2,873.60, 4,300.80 and 2,643.20 is: 3,955.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.60 : 4,300.80 = 2,643.20 : x
  2. Step 2: Convert to fraction form
    2,873.60/4,300.80 = 2,643.20/x
  3. Step 3: Cross multiply
    2,873.60x = 4,300.80 × 2,643.20
  4. Step 4: Simplify right side
    2,873.60x = 11,367,874.56
  5. Step 5: Solve for x
    x = 11,367,874.56/2,873.60
  6. Step 6: Final answer
    x = 3,955.97

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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.