Home / 3,068.78-4,233.51-1,872.81

Finding the Fourth Proportional to 3,068.78, 4,233.51 and 1,872.81

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Solution

The fourth proportional to 3,068.78, 4,233.51 and 1,872.81 is: 2,583.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,068.78 : 4,233.51 = 1,872.81 : x
  2. Step 2: Convert to fraction form
    3,068.78/4,233.51 = 1,872.81/x
  3. Step 3: Cross multiply
    3,068.78x = 4,233.51 × 1,872.81
  4. Step 4: Simplify right side
    3,068.78x = 7,928,559.86
  5. Step 5: Solve for x
    x = 7,928,559.86/3,068.78
  6. Step 6: Final answer
    x = 2,583.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.