Home / 2,135.18-3,200.40-902.22

Finding the Fourth Proportional to 2,135.18, 3,200.40 and 902.22

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Solution

The fourth proportional to 2,135.18, 3,200.40 and 902.22 is: 1,352.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.18 : 3,200.40 = 902.22 : x
  2. Step 2: Convert to fraction form
    2,135.18/3,200.40 = 902.22/x
  3. Step 3: Cross multiply
    2,135.18x = 3,200.40 × 902.22
  4. Step 4: Simplify right side
    2,135.18x = 2,887,464.89
  5. Step 5: Solve for x
    x = 2,887,464.89/2,135.18
  6. Step 6: Final answer
    x = 1,352.33

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1.5x scale

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.