Home / 3,116.53-4,299.74-1,772

Finding the Fourth Proportional to 3,116.53, 4,299.74 and 1,772

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Solution

The fourth proportional to 3,116.53, 4,299.74 and 1,772 is: 2,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.53 : 4,299.74 = 1,772 : x
  2. Step 2: Convert to fraction form
    3,116.53/4,299.74 = 1,772/x
  3. Step 3: Cross multiply
    3,116.53x = 4,299.74 × 1,772
  4. Step 4: Simplify right side
    3,116.53x = 7,619,139.28
  5. Step 5: Solve for x
    x = 7,619,139.28/3,116.53
  6. Step 6: Final answer
    x = 2,444.75

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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.