Home / 2,133.40-3,199.50-1,037.80

Finding the Fourth Proportional to 2,133.40, 3,199.50 and 1,037.80

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Solution

The fourth proportional to 2,133.40, 3,199.50 and 1,037.80 is: 1,556.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.40 : 3,199.50 = 1,037.80 : x
  2. Step 2: Convert to fraction form
    2,133.40/3,199.50 = 1,037.80/x
  3. Step 3: Cross multiply
    2,133.40x = 3,199.50 × 1,037.80
  4. Step 4: Simplify right side
    2,133.40x = 3,320,441.10
  5. Step 5: Solve for x
    x = 3,320,441.10/2,133.40
  6. Step 6: Final answer
    x = 1,556.41

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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.