Home / 5,210.85-7,190.97-2,852.99

Finding the Fourth Proportional to 5,210.85, 7,190.97 and 2,852.99

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Solution

The fourth proportional to 5,210.85, 7,190.97 and 2,852.99 is: 3,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.85 : 7,190.97 = 2,852.99 : x
  2. Step 2: Convert to fraction form
    5,210.85/7,190.97 = 2,852.99/x
  3. Step 3: Cross multiply
    5,210.85x = 7,190.97 × 2,852.99
  4. Step 4: Simplify right side
    5,210.85x = 20,515,729.55
  5. Step 5: Solve for x
    x = 20,515,729.55/5,210.85
  6. Step 6: Final answer
    x = 3,937.12

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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.