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Finding the Fourth Proportional to 6,171.70, 9,257.55 and 4,203.40

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Solution

The fourth proportional to 6,171.70, 9,257.55 and 4,203.40 is: 6,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,171.70 : 9,257.55 = 4,203.40 : x
  2. Step 2: Convert to fraction form
    6,171.70/9,257.55 = 4,203.40/x
  3. Step 3: Cross multiply
    6,171.70x = 9,257.55 × 4,203.40
  4. Step 4: Simplify right side
    6,171.70x = 38,913,185.67
  5. Step 5: Solve for x
    x = 38,913,185.67/6,171.70
  6. Step 6: Final answer
    x = 6,305.10

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Similar ratio
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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.