Home / 2,873.80-4,308.40-2,643.15

Finding the Fourth Proportional to 2,873.80, 4,308.40 and 2,643.15

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Solution

The fourth proportional to 2,873.80, 4,308.40 and 2,643.15 is: 3,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.80 : 4,308.40 = 2,643.15 : x
  2. Step 2: Convert to fraction form
    2,873.80/4,308.40 = 2,643.15/x
  3. Step 3: Cross multiply
    2,873.80x = 4,308.40 × 2,643.15
  4. Step 4: Simplify right side
    2,873.80x = 11,387,746.40
  5. Step 5: Solve for x
    x = 11,387,746.40/2,873.80
  6. Step 6: Final answer
    x = 3,962.62

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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.