Home / 5,220.72-7,835.94-4,316.76

Finding the Fourth Proportional to 5,220.72, 7,835.94 and 4,316.76

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Solution

The fourth proportional to 5,220.72, 7,835.94 and 4,316.76 is: 6,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.72 : 7,835.94 = 4,316.76 : x
  2. Step 2: Convert to fraction form
    5,220.72/7,835.94 = 4,316.76/x
  3. Step 3: Cross multiply
    5,220.72x = 7,835.94 × 4,316.76
  4. Step 4: Simplify right side
    5,220.72x = 33,825,872.35
  5. Step 5: Solve for x
    x = 33,825,872.35/5,220.72
  6. Step 6: Final answer
    x = 6,479.16

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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.