Home / 5,245.32-7,240.08-3,122.36

Finding the Fourth Proportional to 5,245.32, 7,240.08 and 3,122.36

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Solution

The fourth proportional to 5,245.32, 7,240.08 and 3,122.36 is: 4,309.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.32 : 7,240.08 = 3,122.36 : x
  2. Step 2: Convert to fraction form
    5,245.32/7,240.08 = 3,122.36/x
  3. Step 3: Cross multiply
    5,245.32x = 7,240.08 × 3,122.36
  4. Step 4: Simplify right side
    5,245.32x = 22,606,136.19
  5. Step 5: Solve for x
    x = 22,606,136.19/5,245.32
  6. Step 6: Final answer
    x = 4,309.77

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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.