Home / 2,889.22-3,987.54-1,710.66

Finding the Fourth Proportional to 2,889.22, 3,987.54 and 1,710.66

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Solution

The fourth proportional to 2,889.22, 3,987.54 and 1,710.66 is: 2,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.22 : 3,987.54 = 1,710.66 : x
  2. Step 2: Convert to fraction form
    2,889.22/3,987.54 = 1,710.66/x
  3. Step 3: Cross multiply
    2,889.22x = 3,987.54 × 1,710.66
  4. Step 4: Simplify right side
    2,889.22x = 6,821,325.18
  5. Step 5: Solve for x
    x = 6,821,325.18/2,889.22
  6. Step 6: Final answer
    x = 2,360.96

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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.