Home / 3,121.77-4,683.57-1,174.13

Finding the Fourth Proportional to 3,121.77, 4,683.57 and 1,174.13

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Solution

The fourth proportional to 3,121.77, 4,683.57 and 1,174.13 is: 1,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.77 : 4,683.57 = 1,174.13 : x
  2. Step 2: Convert to fraction form
    3,121.77/4,683.57 = 1,174.13/x
  3. Step 3: Cross multiply
    3,121.77x = 4,683.57 × 1,174.13
  4. Step 4: Simplify right side
    3,121.77x = 5,499,096.63
  5. Step 5: Solve for x
    x = 5,499,096.63/3,121.77
  6. Step 6: Final answer
    x = 1,761.53

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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.