Home / 5,711.07-7,880.50-3,192.87

Finding the Fourth Proportional to 5,711.07, 7,880.50 and 3,192.87

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Solution

The fourth proportional to 5,711.07, 7,880.50 and 3,192.87 is: 4,405.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.07 : 7,880.50 = 3,192.87 : x
  2. Step 2: Convert to fraction form
    5,711.07/7,880.50 = 3,192.87/x
  3. Step 3: Cross multiply
    5,711.07x = 7,880.50 × 3,192.87
  4. Step 4: Simplify right side
    5,711.07x = 25,161,412.04
  5. Step 5: Solve for x
    x = 25,161,412.04/5,711.07
  6. Step 6: Final answer
    x = 4,405.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.