Home / 2,135.40-3,197.70-1,353.02

Finding the Fourth Proportional to 2,135.40, 3,197.70 and 1,353.02

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Solution

The fourth proportional to 2,135.40, 3,197.70 and 1,353.02 is: 2,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.40 : 3,197.70 = 1,353.02 : x
  2. Step 2: Convert to fraction form
    2,135.40/3,197.70 = 1,353.02/x
  3. Step 3: Cross multiply
    2,135.40x = 3,197.70 × 1,353.02
  4. Step 4: Simplify right side
    2,135.40x = 4,326,552.05
  5. Step 5: Solve for x
    x = 4,326,552.05/2,135.40
  6. Step 6: Final answer
    x = 2,026.11

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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.