Home / 2,784.10-4,192.41-2,058.78

Finding the Fourth Proportional to 2,784.10, 4,192.41 and 2,058.78

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Solution

The fourth proportional to 2,784.10, 4,192.41 and 2,058.78 is: 3,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.10 : 4,192.41 = 2,058.78 : x
  2. Step 2: Convert to fraction form
    2,784.10/4,192.41 = 2,058.78/x
  3. Step 3: Cross multiply
    2,784.10x = 4,192.41 × 2,058.78
  4. Step 4: Simplify right side
    2,784.10x = 8,631,249.86
  5. Step 5: Solve for x
    x = 8,631,249.86/2,784.10
  6. Step 6: Final answer
    x = 3,100.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.