Home / 3,540.85-4,875.19-2,698.86

Finding the Fourth Proportional to 3,540.85, 4,875.19 and 2,698.86

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Solution

The fourth proportional to 3,540.85, 4,875.19 and 2,698.86 is: 3,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.85 : 4,875.19 = 2,698.86 : x
  2. Step 2: Convert to fraction form
    3,540.85/4,875.19 = 2,698.86/x
  3. Step 3: Cross multiply
    3,540.85x = 4,875.19 × 2,698.86
  4. Step 4: Simplify right side
    3,540.85x = 13,157,455.28
  5. Step 5: Solve for x
    x = 13,157,455.28/3,540.85
  6. Step 6: Final answer
    x = 3,715.90

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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.