Home / 2,148.57-3,218.04-1,867.32

Finding the Fourth Proportional to 2,148.57, 3,218.04 and 1,867.32

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Solution

The fourth proportional to 2,148.57, 3,218.04 and 1,867.32 is: 2,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.57 : 3,218.04 = 1,867.32 : x
  2. Step 2: Convert to fraction form
    2,148.57/3,218.04 = 1,867.32/x
  3. Step 3: Cross multiply
    2,148.57x = 3,218.04 × 1,867.32
  4. Step 4: Simplify right side
    2,148.57x = 6,009,110.45
  5. Step 5: Solve for x
    x = 6,009,110.45/2,148.57
  6. Step 6: Final answer
    x = 2,796.80

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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.