Home / 5,451-8,139.27-4,474.68

Finding the Fourth Proportional to 5,451, 8,139.27 and 4,474.68

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Solution

The fourth proportional to 5,451, 8,139.27 and 4,474.68 is: 6,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451 : 8,139.27 = 4,474.68 : x
  2. Step 2: Convert to fraction form
    5,451/8,139.27 = 4,474.68/x
  3. Step 3: Cross multiply
    5,451x = 8,139.27 × 4,474.68
  4. Step 4: Simplify right side
    5,451x = 36,420,628.68
  5. Step 5: Solve for x
    x = 36,420,628.68/5,451
  6. Step 6: Final answer
    x = 6,681.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.