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Finding the Fourth Proportional to 6,405.94, 8,839.93 and 4,726.75

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Solution

The fourth proportional to 6,405.94, 8,839.93 and 4,726.75 is: 6,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.94 : 8,839.93 = 4,726.75 : x
  2. Step 2: Convert to fraction form
    6,405.94/8,839.93 = 4,726.75/x
  3. Step 3: Cross multiply
    6,405.94x = 8,839.93 × 4,726.75
  4. Step 4: Simplify right side
    6,405.94x = 41,784,139.13
  5. Step 5: Solve for x
    x = 41,784,139.13/6,405.94
  6. Step 6: Final answer
    x = 6,522.72

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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.