Home / 4,721.12-6,516.96-3,148.64

Finding the Fourth Proportional to 4,721.12, 6,516.96 and 3,148.64

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Solution

The fourth proportional to 4,721.12, 6,516.96 and 3,148.64 is: 4,346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.12 : 6,516.96 = 3,148.64 : x
  2. Step 2: Convert to fraction form
    4,721.12/6,516.96 = 3,148.64/x
  3. Step 3: Cross multiply
    4,721.12x = 6,516.96 × 3,148.64
  4. Step 4: Simplify right side
    4,721.12x = 20,519,560.93
  5. Step 5: Solve for x
    x = 20,519,560.93/4,721.12
  6. Step 6: Final answer
    x = 4,346.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.