Home / 6,288.71-8,678.65-3,771.23

Finding the Fourth Proportional to 6,288.71, 8,678.65 and 3,771.23

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Solution

The fourth proportional to 6,288.71, 8,678.65 and 3,771.23 is: 5,204.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.71 : 8,678.65 = 3,771.23 : x
  2. Step 2: Convert to fraction form
    6,288.71/8,678.65 = 3,771.23/x
  3. Step 3: Cross multiply
    6,288.71x = 8,678.65 × 3,771.23
  4. Step 4: Simplify right side
    6,288.71x = 32,729,185.24
  5. Step 5: Solve for x
    x = 32,729,185.24/6,288.71
  6. Step 6: Final answer
    x = 5,204.44

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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.