Home / 3,316.94-4,578.02-1,972.81

Finding the Fourth Proportional to 3,316.94, 4,578.02 and 1,972.81

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Solution

The fourth proportional to 3,316.94, 4,578.02 and 1,972.81 is: 2,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.94 : 4,578.02 = 1,972.81 : x
  2. Step 2: Convert to fraction form
    3,316.94/4,578.02 = 1,972.81/x
  3. Step 3: Cross multiply
    3,316.94x = 4,578.02 × 1,972.81
  4. Step 4: Simplify right side
    3,316.94x = 9,031,563.64
  5. Step 5: Solve for x
    x = 9,031,563.64/3,316.94
  6. Step 6: Final answer
    x = 2,722.86

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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.