Home / 7,158.28-10,739.50-3,208.66

Finding the Fourth Proportional to 7,158.28, 10,739.50 and 3,208.66

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Solution

The fourth proportional to 7,158.28, 10,739.50 and 3,208.66 is: 4,813.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.28 : 10,739.50 = 3,208.66 : x
  2. Step 2: Convert to fraction form
    7,158.28/10,739.50 = 3,208.66/x
  3. Step 3: Cross multiply
    7,158.28x = 10,739.50 × 3,208.66
  4. Step 4: Simplify right side
    7,158.28x = 34,459,369.20
  5. Step 5: Solve for x
    x = 34,459,369.20/7,158.28
  6. Step 6: Final answer
    x = 4,813.92

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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.