Home / 2,289.52-3,434.36-1,939.60

Finding the Fourth Proportional to 2,289.52, 3,434.36 and 1,939.60

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Solution

The fourth proportional to 2,289.52, 3,434.36 and 1,939.60 is: 2,909.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.52 : 3,434.36 = 1,939.60 : x
  2. Step 2: Convert to fraction form
    2,289.52/3,434.36 = 1,939.60/x
  3. Step 3: Cross multiply
    2,289.52x = 3,434.36 × 1,939.60
  4. Step 4: Simplify right side
    2,289.52x = 6,661,284.66
  5. Step 5: Solve for x
    x = 6,661,284.66/2,289.52
  6. Step 6: Final answer
    x = 2,909.47

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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.