Home / 1,170.36-1,756.14-1,161.48

Finding the Fourth Proportional to 1,170.36, 1,756.14 and 1,161.48

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Solution

The fourth proportional to 1,170.36, 1,756.14 and 1,161.48 is: 1,742.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.36 : 1,756.14 = 1,161.48 : x
  2. Step 2: Convert to fraction form
    1,170.36/1,756.14 = 1,161.48/x
  3. Step 3: Cross multiply
    1,170.36x = 1,756.14 × 1,161.48
  4. Step 4: Simplify right side
    1,170.36x = 2,039,721.49
  5. Step 5: Solve for x
    x = 2,039,721.49/1,170.36
  6. Step 6: Final answer
    x = 1,742.82

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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.