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Finding the Fourth Proportional to 3,097.98, 4,649.58 and 1,638.18

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Solution

The fourth proportional to 3,097.98, 4,649.58 and 1,638.18 is: 2,458.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,097.98 : 4,649.58 = 1,638.18 : x
  2. Step 2: Convert to fraction form
    3,097.98/4,649.58 = 1,638.18/x
  3. Step 3: Cross multiply
    3,097.98x = 4,649.58 × 1,638.18
  4. Step 4: Simplify right side
    3,097.98x = 7,616,848.96
  5. Step 5: Solve for x
    x = 7,616,848.96/3,097.98
  6. Step 6: Final answer
    x = 2,458.65

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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.