Home / 1,635.81-2,257.37-927.72

Finding the Fourth Proportional to 1,635.81, 2,257.37 and 927.72

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Solution

The fourth proportional to 1,635.81, 2,257.37 and 927.72 is: 1,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.81 : 2,257.37 = 927.72 : x
  2. Step 2: Convert to fraction form
    1,635.81/2,257.37 = 927.72/x
  3. Step 3: Cross multiply
    1,635.81x = 2,257.37 × 927.72
  4. Step 4: Simplify right side
    1,635.81x = 2,094,194.19
  5. Step 5: Solve for x
    x = 2,094,194.19/1,635.81
  6. Step 6: Final answer
    x = 1,280.22

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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.