Home / 3,148.05-4,722.08-2,807.85

Finding the Fourth Proportional to 3,148.05, 4,722.08 and 2,807.85

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Solution

The fourth proportional to 3,148.05, 4,722.08 and 2,807.85 is: 4,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.05 : 4,722.08 = 2,807.85 : x
  2. Step 2: Convert to fraction form
    3,148.05/4,722.08 = 2,807.85/x
  3. Step 3: Cross multiply
    3,148.05x = 4,722.08 × 2,807.85
  4. Step 4: Simplify right side
    3,148.05x = 13,258,878.29
  5. Step 5: Solve for x
    x = 13,258,878.29/3,148.05
  6. Step 6: Final answer
    x = 4,211.78

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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.