Home / 3,512.07-5,267.50-1,320.41

Finding the Fourth Proportional to 3,512.07, 5,267.50 and 1,320.41

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Solution

The fourth proportional to 3,512.07, 5,267.50 and 1,320.41 is: 1,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.07 : 5,267.50 = 1,320.41 : x
  2. Step 2: Convert to fraction form
    3,512.07/5,267.50 = 1,320.41/x
  3. Step 3: Cross multiply
    3,512.07x = 5,267.50 × 1,320.41
  4. Step 4: Simplify right side
    3,512.07x = 6,955,269.54
  5. Step 5: Solve for x
    x = 6,955,269.54/3,512.07
  6. Step 6: Final answer
    x = 1,980.39

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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.