Home / 3,098.31-4,638.23-2,987.60

Finding the Fourth Proportional to 3,098.31, 4,638.23 and 2,987.60

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Solution

The fourth proportional to 3,098.31, 4,638.23 and 2,987.60 is: 4,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.31 : 4,638.23 = 2,987.60 : x
  2. Step 2: Convert to fraction form
    3,098.31/4,638.23 = 2,987.60/x
  3. Step 3: Cross multiply
    3,098.31x = 4,638.23 × 2,987.60
  4. Step 4: Simplify right side
    3,098.31x = 13,857,137.82
  5. Step 5: Solve for x
    x = 13,857,137.82/3,098.31
  6. Step 6: Final answer
    x = 4,472.48

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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.