Home / 3,168.42-4,752.16-1,220.38

Finding the Fourth Proportional to 3,168.42, 4,752.16 and 1,220.38

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Solution

The fourth proportional to 3,168.42, 4,752.16 and 1,220.38 is: 1,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.42 : 4,752.16 = 1,220.38 : x
  2. Step 2: Convert to fraction form
    3,168.42/4,752.16 = 1,220.38/x
  3. Step 3: Cross multiply
    3,168.42x = 4,752.16 × 1,220.38
  4. Step 4: Simplify right side
    3,168.42x = 5,799,441.02
  5. Step 5: Solve for x
    x = 5,799,441.02/3,168.42
  6. Step 6: Final answer
    x = 1,830.39

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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.