Home / 5,211.19-7,190.77-2,972.93

Finding the Fourth Proportional to 5,211.19, 7,190.77 and 2,972.93

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Solution

The fourth proportional to 5,211.19, 7,190.77 and 2,972.93 is: 4,102.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.19 : 7,190.77 = 2,972.93 : x
  2. Step 2: Convert to fraction form
    5,211.19/7,190.77 = 2,972.93/x
  3. Step 3: Cross multiply
    5,211.19x = 7,190.77 × 2,972.93
  4. Step 4: Simplify right side
    5,211.19x = 21,377,673.83
  5. Step 5: Solve for x
    x = 21,377,673.83/5,211.19
  6. Step 6: Final answer
    x = 4,102.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.