Home / 6,143.21-8,477.66-3,490.76

Finding the Fourth Proportional to 6,143.21, 8,477.66 and 3,490.76

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Solution

The fourth proportional to 6,143.21, 8,477.66 and 3,490.76 is: 4,817.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,143.21 : 8,477.66 = 3,490.76 : x
  2. Step 2: Convert to fraction form
    6,143.21/8,477.66 = 3,490.76/x
  3. Step 3: Cross multiply
    6,143.21x = 8,477.66 × 3,490.76
  4. Step 4: Simplify right side
    6,143.21x = 29,593,476.42
  5. Step 5: Solve for x
    x = 29,593,476.42/6,143.21
  6. Step 6: Final answer
    x = 4,817.27

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Half scale
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Double scale
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Similar ratio
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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.