Home / 2,214.80-3,325.80-1,487.60

Finding the Fourth Proportional to 2,214.80, 3,325.80 and 1,487.60

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Solution

The fourth proportional to 2,214.80, 3,325.80 and 1,487.60 is: 2,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.80 : 3,325.80 = 1,487.60 : x
  2. Step 2: Convert to fraction form
    2,214.80/3,325.80 = 1,487.60/x
  3. Step 3: Cross multiply
    2,214.80x = 3,325.80 × 1,487.60
  4. Step 4: Simplify right side
    2,214.80x = 4,947,460.08
  5. Step 5: Solve for x
    x = 4,947,460.08/2,214.80
  6. Step 6: Final answer
    x = 2,233.82

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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.