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Finding the Fourth Proportional to 6,840.95, 10,261.41 and 2,223.95

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Solution

The fourth proportional to 6,840.95, 10,261.41 and 2,223.95 is: 3,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840.95 : 10,261.41 = 2,223.95 : x
  2. Step 2: Convert to fraction form
    6,840.95/10,261.41 = 2,223.95/x
  3. Step 3: Cross multiply
    6,840.95x = 10,261.41 × 2,223.95
  4. Step 4: Simplify right side
    6,840.95x = 22,820,811.46
  5. Step 5: Solve for x
    x = 22,820,811.46/6,840.95
  6. Step 6: Final answer
    x = 3,335.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.