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Finding the Fourth Proportional to 6,480.18, 9,719.96 and 1,800.16

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Solution

The fourth proportional to 6,480.18, 9,719.96 and 1,800.16 is: 2,700.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.18 : 9,719.96 = 1,800.16 : x
  2. Step 2: Convert to fraction form
    6,480.18/9,719.96 = 1,800.16/x
  3. Step 3: Cross multiply
    6,480.18x = 9,719.96 × 1,800.16
  4. Step 4: Simplify right side
    6,480.18x = 17,497,449.89
  5. Step 5: Solve for x
    x = 17,497,449.89/6,480.18
  6. Step 6: Final answer
    x = 2,700.15

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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.