Home / 5,155.86-7,116.11-2,917.74

Finding the Fourth Proportional to 5,155.86, 7,116.11 and 2,917.74

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Solution

The fourth proportional to 5,155.86, 7,116.11 and 2,917.74 is: 4,027.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.86 : 7,116.11 = 2,917.74 : x
  2. Step 2: Convert to fraction form
    5,155.86/7,116.11 = 2,917.74/x
  3. Step 3: Cross multiply
    5,155.86x = 7,116.11 × 2,917.74
  4. Step 4: Simplify right side
    5,155.86x = 20,762,958.79
  5. Step 5: Solve for x
    x = 20,762,958.79/5,155.86
  6. Step 6: Final answer
    x = 4,027.06

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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.