Home / 5,210.83-7,190.76-3,114.55

Finding the Fourth Proportional to 5,210.83, 7,190.76 and 3,114.55

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Solution

The fourth proportional to 5,210.83, 7,190.76 and 3,114.55 is: 4,297.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.83 : 7,190.76 = 3,114.55 : x
  2. Step 2: Convert to fraction form
    5,210.83/7,190.76 = 3,114.55/x
  3. Step 3: Cross multiply
    5,210.83x = 7,190.76 × 3,114.55
  4. Step 4: Simplify right side
    5,210.83x = 22,395,981.56
  5. Step 5: Solve for x
    x = 22,395,981.56/5,210.83
  6. Step 6: Final answer
    x = 4,297.97

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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.