Home / 2,193.20-3,290.56-1,370.50

Finding the Fourth Proportional to 2,193.20, 3,290.56 and 1,370.50

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Solution

The fourth proportional to 2,193.20, 3,290.56 and 1,370.50 is: 2,056.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.20 : 3,290.56 = 1,370.50 : x
  2. Step 2: Convert to fraction form
    2,193.20/3,290.56 = 1,370.50/x
  3. Step 3: Cross multiply
    2,193.20x = 3,290.56 × 1,370.50
  4. Step 4: Simplify right side
    2,193.20x = 4,509,712.48
  5. Step 5: Solve for x
    x = 4,509,712.48/2,193.20
  6. Step 6: Final answer
    x = 2,056.22

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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.