Home / 5,142.84-7,711.32-1,632.18

Finding the Fourth Proportional to 5,142.84, 7,711.32 and 1,632.18

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Solution

The fourth proportional to 5,142.84, 7,711.32 and 1,632.18 is: 2,447.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.84 : 7,711.32 = 1,632.18 : x
  2. Step 2: Convert to fraction form
    5,142.84/7,711.32 = 1,632.18/x
  3. Step 3: Cross multiply
    5,142.84x = 7,711.32 × 1,632.18
  4. Step 4: Simplify right side
    5,142.84x = 12,586,262.28
  5. Step 5: Solve for x
    x = 12,586,262.28/5,142.84
  6. Step 6: Final answer
    x = 2,447.34

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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.