Home / 4,479.12-6,715.32-1,555.92

Finding the Fourth Proportional to 4,479.12, 6,715.32 and 1,555.92

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Solution

The fourth proportional to 4,479.12, 6,715.32 and 1,555.92 is: 2,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.12 : 6,715.32 = 1,555.92 : x
  2. Step 2: Convert to fraction form
    4,479.12/6,715.32 = 1,555.92/x
  3. Step 3: Cross multiply
    4,479.12x = 6,715.32 × 1,555.92
  4. Step 4: Simplify right side
    4,479.12x = 10,448,500.69
  5. Step 5: Solve for x
    x = 10,448,500.69/4,479.12
  6. Step 6: Final answer
    x = 2,332.71

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1.5x scale

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.