Home / 3,078.16-4,607.82-2,487.68

Finding the Fourth Proportional to 3,078.16, 4,607.82 and 2,487.68

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Solution

The fourth proportional to 3,078.16, 4,607.82 and 2,487.68 is: 3,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.16 : 4,607.82 = 2,487.68 : x
  2. Step 2: Convert to fraction form
    3,078.16/4,607.82 = 2,487.68/x
  3. Step 3: Cross multiply
    3,078.16x = 4,607.82 × 2,487.68
  4. Step 4: Simplify right side
    3,078.16x = 11,462,781.66
  5. Step 5: Solve for x
    x = 11,462,781.66/3,078.16
  6. Step 6: Final answer
    x = 3,723.91

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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.