Home / 5,210.56-7,190.61-2,972.42

Finding the Fourth Proportional to 5,210.56, 7,190.61 and 2,972.42

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Solution

The fourth proportional to 5,210.56, 7,190.61 and 2,972.42 is: 4,101.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.56 : 7,190.61 = 2,972.42 : x
  2. Step 2: Convert to fraction form
    5,210.56/7,190.61 = 2,972.42/x
  3. Step 3: Cross multiply
    5,210.56x = 7,190.61 × 2,972.42
  4. Step 4: Simplify right side
    5,210.56x = 21,373,512.98
  5. Step 5: Solve for x
    x = 21,373,512.98/5,210.56
  6. Step 6: Final answer
    x = 4,101.96

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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.