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Finding the Fourth Proportional to 5,679.36, 8,497.08 and 5,664.72

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Solution

The fourth proportional to 5,679.36, 8,497.08 and 5,664.72 is: 8,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.36 : 8,497.08 = 5,664.72 : x
  2. Step 2: Convert to fraction form
    5,679.36/8,497.08 = 5,664.72/x
  3. Step 3: Cross multiply
    5,679.36x = 8,497.08 × 5,664.72
  4. Step 4: Simplify right side
    5,679.36x = 48,133,579.02
  5. Step 5: Solve for x
    x = 48,133,579.02/5,679.36
  6. Step 6: Final answer
    x = 8,475.18

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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.