Home / 4,785.32-7,178.13-1,322.57

Finding the Fourth Proportional to 4,785.32, 7,178.13 and 1,322.57

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Solution

The fourth proportional to 4,785.32, 7,178.13 and 1,322.57 is: 1,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.32 : 7,178.13 = 1,322.57 : x
  2. Step 2: Convert to fraction form
    4,785.32/7,178.13 = 1,322.57/x
  3. Step 3: Cross multiply
    4,785.32x = 7,178.13 × 1,322.57
  4. Step 4: Simplify right side
    4,785.32x = 9,493,597.34
  5. Step 5: Solve for x
    x = 9,493,597.34/4,785.32
  6. Step 6: Final answer
    x = 1,983.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.