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Finding the Fourth Proportional to 1,889.19, 2,833.65 and 1,064.88

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Solution

The fourth proportional to 1,889.19, 2,833.65 and 1,064.88 is: 1,597.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.19 : 2,833.65 = 1,064.88 : x
  2. Step 2: Convert to fraction form
    1,889.19/2,833.65 = 1,064.88/x
  3. Step 3: Cross multiply
    1,889.19x = 2,833.65 × 1,064.88
  4. Step 4: Simplify right side
    1,889.19x = 3,017,497.21
  5. Step 5: Solve for x
    x = 3,017,497.21/1,889.19
  6. Step 6: Final answer
    x = 1,597.24

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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.