Home / 6,971.24-9,621.79-4,178.36

Finding the Fourth Proportional to 6,971.24, 9,621.79 and 4,178.36

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Solution

The fourth proportional to 6,971.24, 9,621.79 and 4,178.36 is: 5,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.24 : 9,621.79 = 4,178.36 : x
  2. Step 2: Convert to fraction form
    6,971.24/9,621.79 = 4,178.36/x
  3. Step 3: Cross multiply
    6,971.24x = 9,621.79 × 4,178.36
  4. Step 4: Simplify right side
    6,971.24x = 40,203,243.91
  5. Step 5: Solve for x
    x = 40,203,243.91/6,971.24
  6. Step 6: Final answer
    x = 5,767.02

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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.