Home / 3,109.12-4,663.53-1,161.17

Finding the Fourth Proportional to 3,109.12, 4,663.53 and 1,161.17

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Solution

The fourth proportional to 3,109.12, 4,663.53 and 1,161.17 is: 1,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.12 : 4,663.53 = 1,161.17 : x
  2. Step 2: Convert to fraction form
    3,109.12/4,663.53 = 1,161.17/x
  3. Step 3: Cross multiply
    3,109.12x = 4,663.53 × 1,161.17
  4. Step 4: Simplify right side
    3,109.12x = 5,415,161.34
  5. Step 5: Solve for x
    x = 5,415,161.34/3,109.12
  6. Step 6: Final answer
    x = 1,741.70

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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.