Home / 2,889.32-3,988.98-1,896.34

Finding the Fourth Proportional to 2,889.32, 3,988.98 and 1,896.34

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Solution

The fourth proportional to 2,889.32, 3,988.98 and 1,896.34 is: 2,618.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.32 : 3,988.98 = 1,896.34 : x
  2. Step 2: Convert to fraction form
    2,889.32/3,988.98 = 1,896.34/x
  3. Step 3: Cross multiply
    2,889.32x = 3,988.98 × 1,896.34
  4. Step 4: Simplify right side
    2,889.32x = 7,564,432.91
  5. Step 5: Solve for x
    x = 7,564,432.91/2,889.32
  6. Step 6: Final answer
    x = 2,618.07

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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.