Home / 6,822.95-9,415.57-3,838.79

Finding the Fourth Proportional to 6,822.95, 9,415.57 and 3,838.79

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Solution

The fourth proportional to 6,822.95, 9,415.57 and 3,838.79 is: 5,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,822.95 : 9,415.57 = 3,838.79 : x
  2. Step 2: Convert to fraction form
    6,822.95/9,415.57 = 3,838.79/x
  3. Step 3: Cross multiply
    6,822.95x = 9,415.57 × 3,838.79
  4. Step 4: Simplify right side
    6,822.95x = 36,144,395.96
  5. Step 5: Solve for x
    x = 36,144,395.96/6,822.95
  6. Step 6: Final answer
    x = 5,297.47

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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.