Home / 4,947.46-7,421.19-4,212.34

Finding the Fourth Proportional to 4,947.46, 7,421.19 and 4,212.34

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Solution

The fourth proportional to 4,947.46, 7,421.19 and 4,212.34 is: 6,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.46 : 7,421.19 = 4,212.34 : x
  2. Step 2: Convert to fraction form
    4,947.46/7,421.19 = 4,212.34/x
  3. Step 3: Cross multiply
    4,947.46x = 7,421.19 × 4,212.34
  4. Step 4: Simplify right side
    4,947.46x = 31,260,575.48
  5. Step 5: Solve for x
    x = 31,260,575.48/4,947.46
  6. Step 6: Final answer
    x = 6,318.51

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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.