Home / 7,322.88-10,104.64-4,178.24

Finding the Fourth Proportional to 7,322.88, 10,104.64 and 4,178.24

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Solution

The fourth proportional to 7,322.88, 10,104.64 and 4,178.24 is: 5,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.88 : 10,104.64 = 4,178.24 : x
  2. Step 2: Convert to fraction form
    7,322.88/10,104.64 = 4,178.24/x
  3. Step 3: Cross multiply
    7,322.88x = 10,104.64 × 4,178.24
  4. Step 4: Simplify right side
    7,322.88x = 42,219,611.03
  5. Step 5: Solve for x
    x = 42,219,611.03/7,322.88
  6. Step 6: Final answer
    x = 5,765.44

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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.