Home / 1,623.41-2,431.21-927.97

Finding the Fourth Proportional to 1,623.41, 2,431.21 and 927.97

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Solution

The fourth proportional to 1,623.41, 2,431.21 and 927.97 is: 1,389.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.41 : 2,431.21 = 927.97 : x
  2. Step 2: Convert to fraction form
    1,623.41/2,431.21 = 927.97/x
  3. Step 3: Cross multiply
    1,623.41x = 2,431.21 × 927.97
  4. Step 4: Simplify right side
    1,623.41x = 2,256,089.94
  5. Step 5: Solve for x
    x = 2,256,089.94/1,623.41
  6. Step 6: Final answer
    x = 1,389.72

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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.