Home / 3,324.25-4,985.68-1,131.79

Finding the Fourth Proportional to 3,324.25, 4,985.68 and 1,131.79

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Solution

The fourth proportional to 3,324.25, 4,985.68 and 1,131.79 is: 1,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324.25 : 4,985.68 = 1,131.79 : x
  2. Step 2: Convert to fraction form
    3,324.25/4,985.68 = 1,131.79/x
  3. Step 3: Cross multiply
    3,324.25x = 4,985.68 × 1,131.79
  4. Step 4: Simplify right side
    3,324.25x = 5,642,742.77
  5. Step 5: Solve for x
    x = 5,642,742.77/3,324.25
  6. Step 6: Final answer
    x = 1,697.45

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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.