Home / 2,164.93-2,987.69-1,325.36

Finding the Fourth Proportional to 2,164.93, 2,987.69 and 1,325.36

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Solution

The fourth proportional to 2,164.93, 2,987.69 and 1,325.36 is: 1,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.93 : 2,987.69 = 1,325.36 : x
  2. Step 2: Convert to fraction form
    2,164.93/2,987.69 = 1,325.36/x
  3. Step 3: Cross multiply
    2,164.93x = 2,987.69 × 1,325.36
  4. Step 4: Simplify right side
    2,164.93x = 3,959,765.66
  5. Step 5: Solve for x
    x = 3,959,765.66/2,164.93
  6. Step 6: Final answer
    x = 1,829.05

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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.