Home / 3,207.78-4,428.74-2,460.30

Finding the Fourth Proportional to 3,207.78, 4,428.74 and 2,460.30

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Solution

The fourth proportional to 3,207.78, 4,428.74 and 2,460.30 is: 3,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.78 : 4,428.74 = 2,460.30 : x
  2. Step 2: Convert to fraction form
    3,207.78/4,428.74 = 2,460.30/x
  3. Step 3: Cross multiply
    3,207.78x = 4,428.74 × 2,460.30
  4. Step 4: Simplify right side
    3,207.78x = 10,896,029.02
  5. Step 5: Solve for x
    x = 10,896,029.02/3,207.78
  6. Step 6: Final answer
    x = 3,396.75

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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.