Home / 5,176.74-7,145.52-3,190.20

Finding the Fourth Proportional to 5,176.74, 7,145.52 and 3,190.20

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Solution

The fourth proportional to 5,176.74, 7,145.52 and 3,190.20 is: 4,403.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.74 : 7,145.52 = 3,190.20 : x
  2. Step 2: Convert to fraction form
    5,176.74/7,145.52 = 3,190.20/x
  3. Step 3: Cross multiply
    5,176.74x = 7,145.52 × 3,190.20
  4. Step 4: Simplify right side
    5,176.74x = 22,795,637.90
  5. Step 5: Solve for x
    x = 22,795,637.90/5,176.74
  6. Step 6: Final answer
    x = 4,403.47

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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.