Home / 6,629.64-9,942.30-2,931.78

Finding the Fourth Proportional to 6,629.64, 9,942.30 and 2,931.78

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Solution

The fourth proportional to 6,629.64, 9,942.30 and 2,931.78 is: 4,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.64 : 9,942.30 = 2,931.78 : x
  2. Step 2: Convert to fraction form
    6,629.64/9,942.30 = 2,931.78/x
  3. Step 3: Cross multiply
    6,629.64x = 9,942.30 × 2,931.78
  4. Step 4: Simplify right side
    6,629.64x = 29,148,636.29
  5. Step 5: Solve for x
    x = 29,148,636.29/6,629.64
  6. Step 6: Final answer
    x = 4,396.71

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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.