Home / 6,721.13-9,275.15-3,777.13

Finding the Fourth Proportional to 6,721.13, 9,275.15 and 3,777.13

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Solution

The fourth proportional to 6,721.13, 9,275.15 and 3,777.13 is: 5,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.13 : 9,275.15 = 3,777.13 : x
  2. Step 2: Convert to fraction form
    6,721.13/9,275.15 = 3,777.13/x
  3. Step 3: Cross multiply
    6,721.13x = 9,275.15 × 3,777.13
  4. Step 4: Simplify right side
    6,721.13x = 35,033,410.39
  5. Step 5: Solve for x
    x = 35,033,410.39/6,721.13
  6. Step 6: Final answer
    x = 5,212.43

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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.