Home / 2,998.40-4,137.30-1,672.07

Finding the Fourth Proportional to 2,998.40, 4,137.30 and 1,672.07

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Solution

The fourth proportional to 2,998.40, 4,137.30 and 1,672.07 is: 2,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.40 : 4,137.30 = 1,672.07 : x
  2. Step 2: Convert to fraction form
    2,998.40/4,137.30 = 1,672.07/x
  3. Step 3: Cross multiply
    2,998.40x = 4,137.30 × 1,672.07
  4. Step 4: Simplify right side
    2,998.40x = 6,917,834.52
  5. Step 5: Solve for x
    x = 6,917,834.52/2,998.40
  6. Step 6: Final answer
    x = 2,307.18

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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.