Home / 5,518.47-8,278.29-2,745.84

Finding the Fourth Proportional to 5,518.47, 8,278.29 and 2,745.84

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Solution

The fourth proportional to 5,518.47, 8,278.29 and 2,745.84 is: 4,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.47 : 8,278.29 = 2,745.84 : x
  2. Step 2: Convert to fraction form
    5,518.47/8,278.29 = 2,745.84/x
  3. Step 3: Cross multiply
    5,518.47x = 8,278.29 × 2,745.84
  4. Step 4: Simplify right side
    5,518.47x = 22,730,859.81
  5. Step 5: Solve for x
    x = 22,730,859.81/5,518.47
  6. Step 6: Final answer
    x = 4,119.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.