Home / 2,889.18-3,987.87-1,710.90

Finding the Fourth Proportional to 2,889.18, 3,987.87 and 1,710.90

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Solution

The fourth proportional to 2,889.18, 3,987.87 and 1,710.90 is: 2,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.18 : 3,987.87 = 1,710.90 : x
  2. Step 2: Convert to fraction form
    2,889.18/3,987.87 = 1,710.90/x
  3. Step 3: Cross multiply
    2,889.18x = 3,987.87 × 1,710.90
  4. Step 4: Simplify right side
    2,889.18x = 6,822,846.78
  5. Step 5: Solve for x
    x = 6,822,846.78/2,889.18
  6. Step 6: Final answer
    x = 2,361.52

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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.