Home / 3,058.17-4,188.65-2,878.64

Finding the Fourth Proportional to 3,058.17, 4,188.65 and 2,878.64

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Solution

The fourth proportional to 3,058.17, 4,188.65 and 2,878.64 is: 3,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,058.17 : 4,188.65 = 2,878.64 : x
  2. Step 2: Convert to fraction form
    3,058.17/4,188.65 = 2,878.64/x
  3. Step 3: Cross multiply
    3,058.17x = 4,188.65 × 2,878.64
  4. Step 4: Simplify right side
    3,058.17x = 12,057,620.10
  5. Step 5: Solve for x
    x = 12,057,620.10/3,058.17
  6. Step 6: Final answer
    x = 3,942.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.