Home / 4,399.78-6,599.68-1,478.32

Finding the Fourth Proportional to 4,399.78, 6,599.68 and 1,478.32

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Solution

The fourth proportional to 4,399.78, 6,599.68 and 1,478.32 is: 2,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,399.78 : 6,599.68 = 1,478.32 : x
  2. Step 2: Convert to fraction form
    4,399.78/6,599.68 = 1,478.32/x
  3. Step 3: Cross multiply
    4,399.78x = 6,599.68 × 1,478.32
  4. Step 4: Simplify right side
    4,399.78x = 9,756,438.94
  5. Step 5: Solve for x
    x = 9,756,438.94/4,399.78
  6. Step 6: Final answer
    x = 2,217.48

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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.