Home / 5,271.70-7,275.13-3,480.75

Finding the Fourth Proportional to 5,271.70, 7,275.13 and 3,480.75

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Solution

The fourth proportional to 5,271.70, 7,275.13 and 3,480.75 is: 4,803.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.70 : 7,275.13 = 3,480.75 : x
  2. Step 2: Convert to fraction form
    5,271.70/7,275.13 = 3,480.75/x
  3. Step 3: Cross multiply
    5,271.70x = 7,275.13 × 3,480.75
  4. Step 4: Simplify right side
    5,271.70x = 25,322,908.75
  5. Step 5: Solve for x
    x = 25,322,908.75/5,271.70
  6. Step 6: Final answer
    x = 4,803.56

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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.