Home / 3,212.02-4,820.55-1,479.70

Finding the Fourth Proportional to 3,212.02, 4,820.55 and 1,479.70

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Solution

The fourth proportional to 3,212.02, 4,820.55 and 1,479.70 is: 2,220.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.02 : 4,820.55 = 1,479.70 : x
  2. Step 2: Convert to fraction form
    3,212.02/4,820.55 = 1,479.70/x
  3. Step 3: Cross multiply
    3,212.02x = 4,820.55 × 1,479.70
  4. Step 4: Simplify right side
    3,212.02x = 7,132,967.84
  5. Step 5: Solve for x
    x = 7,132,967.84/3,212.02
  6. Step 6: Final answer
    x = 2,220.71

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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.