Home / 4,078.85-5,630.91-2,507.86

Finding the Fourth Proportional to 4,078.85, 5,630.91 and 2,507.86

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Solution

The fourth proportional to 4,078.85, 5,630.91 and 2,507.86 is: 3,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.85 : 5,630.91 = 2,507.86 : x
  2. Step 2: Convert to fraction form
    4,078.85/5,630.91 = 2,507.86/x
  3. Step 3: Cross multiply
    4,078.85x = 5,630.91 × 2,507.86
  4. Step 4: Simplify right side
    4,078.85x = 14,121,519.88
  5. Step 5: Solve for x
    x = 14,121,519.88/4,078.85
  6. Step 6: Final answer
    x = 3,462.13

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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.