Home / 2,511.78-3,465.09-1,672.26

Finding the Fourth Proportional to 2,511.78, 3,465.09 and 1,672.26

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Solution

The fourth proportional to 2,511.78, 3,465.09 and 1,672.26 is: 2,306.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.78 : 3,465.09 = 1,672.26 : x
  2. Step 2: Convert to fraction form
    2,511.78/3,465.09 = 1,672.26/x
  3. Step 3: Cross multiply
    2,511.78x = 3,465.09 × 1,672.26
  4. Step 4: Simplify right side
    2,511.78x = 5,794,531.40
  5. Step 5: Solve for x
    x = 5,794,531.40/2,511.78
  6. Step 6: Final answer
    x = 2,306.94

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1.5x scale

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.