Home / 1,789.64-2,467.28-1,543.56

Finding the Fourth Proportional to 1,789.64, 2,467.28 and 1,543.56

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Solution

The fourth proportional to 1,789.64, 2,467.28 and 1,543.56 is: 2,128.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.64 : 2,467.28 = 1,543.56 : x
  2. Step 2: Convert to fraction form
    1,789.64/2,467.28 = 1,543.56/x
  3. Step 3: Cross multiply
    1,789.64x = 2,467.28 × 1,543.56
  4. Step 4: Simplify right side
    1,789.64x = 3,808,394.72
  5. Step 5: Solve for x
    x = 3,808,394.72/1,789.64
  6. Step 6: Final answer
    x = 2,128.02

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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.