Home / 2,998.57-4,137.72-1,672.15

Finding the Fourth Proportional to 2,998.57, 4,137.72 and 1,672.15

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Solution

The fourth proportional to 2,998.57, 4,137.72 and 1,672.15 is: 2,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.57 : 4,137.72 = 1,672.15 : x
  2. Step 2: Convert to fraction form
    2,998.57/4,137.72 = 1,672.15/x
  3. Step 3: Cross multiply
    2,998.57x = 4,137.72 × 1,672.15
  4. Step 4: Simplify right side
    2,998.57x = 6,918,888.50
  5. Step 5: Solve for x
    x = 6,918,888.50/2,998.57
  6. Step 6: Final answer
    x = 2,307.40

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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.