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Finding the Fourth Proportional to 4,321.92, 6,479.16 and 1,723.20

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Solution

The fourth proportional to 4,321.92, 6,479.16 and 1,723.20 is: 2,583.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.92 : 6,479.16 = 1,723.20 : x
  2. Step 2: Convert to fraction form
    4,321.92/6,479.16 = 1,723.20/x
  3. Step 3: Cross multiply
    4,321.92x = 6,479.16 × 1,723.20
  4. Step 4: Simplify right side
    4,321.92x = 11,164,888.51
  5. Step 5: Solve for x
    x = 11,164,888.51/4,321.92
  6. Step 6: Final answer
    x = 2,583.32

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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.