Home / 2,193.02-3,288.74-731.78

Finding the Fourth Proportional to 2,193.02, 3,288.74 and 731.78

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Solution

The fourth proportional to 2,193.02, 3,288.74 and 731.78 is: 1,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.02 : 3,288.74 = 731.78 : x
  2. Step 2: Convert to fraction form
    2,193.02/3,288.74 = 731.78/x
  3. Step 3: Cross multiply
    2,193.02x = 3,288.74 × 731.78
  4. Step 4: Simplify right side
    2,193.02x = 2,406,634.16
  5. Step 5: Solve for x
    x = 2,406,634.16/2,193.02
  6. Step 6: Final answer
    x = 1,097.41

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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.