Home / 1,789.48-2,681.80-801.64

Finding the Fourth Proportional to 1,789.48, 2,681.80 and 801.64

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Solution

The fourth proportional to 1,789.48, 2,681.80 and 801.64 is: 1,201.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.48 : 2,681.80 = 801.64 : x
  2. Step 2: Convert to fraction form
    1,789.48/2,681.80 = 801.64/x
  3. Step 3: Cross multiply
    1,789.48x = 2,681.80 × 801.64
  4. Step 4: Simplify right side
    1,789.48x = 2,149,838.15
  5. Step 5: Solve for x
    x = 2,149,838.15/1,789.48
  6. Step 6: Final answer
    x = 1,201.38

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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.