Home / 3,418.77-5,122.68-3,090.72

Finding the Fourth Proportional to 3,418.77, 5,122.68 and 3,090.72

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Solution

The fourth proportional to 3,418.77, 5,122.68 and 3,090.72 is: 4,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.77 : 5,122.68 = 3,090.72 : x
  2. Step 2: Convert to fraction form
    3,418.77/5,122.68 = 3,090.72/x
  3. Step 3: Cross multiply
    3,418.77x = 5,122.68 × 3,090.72
  4. Step 4: Simplify right side
    3,418.77x = 15,832,774.41
  5. Step 5: Solve for x
    x = 15,832,774.41/3,418.77
  6. Step 6: Final answer
    x = 4,631.13

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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.