Home / 2,137.04-3,205.28-676.20

Finding the Fourth Proportional to 2,137.04, 3,205.28 and 676.20

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Solution

The fourth proportional to 2,137.04, 3,205.28 and 676.20 is: 1,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.04 : 3,205.28 = 676.20 : x
  2. Step 2: Convert to fraction form
    2,137.04/3,205.28 = 676.20/x
  3. Step 3: Cross multiply
    2,137.04x = 3,205.28 × 676.20
  4. Step 4: Simplify right side
    2,137.04x = 2,167,410.34
  5. Step 5: Solve for x
    x = 2,167,410.34/2,137.04
  6. Step 6: Final answer
    x = 1,014.21

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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.