Home / 5,124.55-7,689.81-2,162.81

Finding the Fourth Proportional to 5,124.55, 7,689.81 and 2,162.81

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Solution

The fourth proportional to 5,124.55, 7,689.81 and 2,162.81 is: 3,245.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.55 : 7,689.81 = 2,162.81 : x
  2. Step 2: Convert to fraction form
    5,124.55/7,689.81 = 2,162.81/x
  3. Step 3: Cross multiply
    5,124.55x = 7,689.81 × 2,162.81
  4. Step 4: Simplify right side
    5,124.55x = 16,631,597.97
  5. Step 5: Solve for x
    x = 16,631,597.97/5,124.55
  6. Step 6: Final answer
    x = 3,245.47

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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.