Home / 3,151.89-4,728.63-1,204.65

Finding the Fourth Proportional to 3,151.89, 4,728.63 and 1,204.65

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Solution

The fourth proportional to 3,151.89, 4,728.63 and 1,204.65 is: 1,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.89 : 4,728.63 = 1,204.65 : x
  2. Step 2: Convert to fraction form
    3,151.89/4,728.63 = 1,204.65/x
  3. Step 3: Cross multiply
    3,151.89x = 4,728.63 × 1,204.65
  4. Step 4: Simplify right side
    3,151.89x = 5,696,344.13
  5. Step 5: Solve for x
    x = 5,696,344.13/3,151.89
  6. Step 6: Final answer
    x = 1,807.28

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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.