Home / 5,216.86-7,199.39-2,859.13

Finding the Fourth Proportional to 5,216.86, 7,199.39 and 2,859.13

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Solution

The fourth proportional to 5,216.86, 7,199.39 and 2,859.13 is: 3,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.86 : 7,199.39 = 2,859.13 : x
  2. Step 2: Convert to fraction form
    5,216.86/7,199.39 = 2,859.13/x
  3. Step 3: Cross multiply
    5,216.86x = 7,199.39 × 2,859.13
  4. Step 4: Simplify right side
    5,216.86x = 20,583,941.64
  5. Step 5: Solve for x
    x = 20,583,941.64/5,216.86
  6. Step 6: Final answer
    x = 3,945.66

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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.