Home / 2,137.79-3,205.67-1,357.36

Finding the Fourth Proportional to 2,137.79, 3,205.67 and 1,357.36

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Solution

The fourth proportional to 2,137.79, 3,205.67 and 1,357.36 is: 2,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.79 : 3,205.67 = 1,357.36 : x
  2. Step 2: Convert to fraction form
    2,137.79/3,205.67 = 1,357.36/x
  3. Step 3: Cross multiply
    2,137.79x = 3,205.67 × 1,357.36
  4. Step 4: Simplify right side
    2,137.79x = 4,351,248.23
  5. Step 5: Solve for x
    x = 4,351,248.23/2,137.79
  6. Step 6: Final answer
    x = 2,035.40

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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.