Home / 1,040.23-1,558.51-927.23

Finding the Fourth Proportional to 1,040.23, 1,558.51 and 927.23

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Solution

The fourth proportional to 1,040.23, 1,558.51 and 927.23 is: 1,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.23 : 1,558.51 = 927.23 : x
  2. Step 2: Convert to fraction form
    1,040.23/1,558.51 = 927.23/x
  3. Step 3: Cross multiply
    1,040.23x = 1,558.51 × 927.23
  4. Step 4: Simplify right side
    1,040.23x = 1,445,097.23
  5. Step 5: Solve for x
    x = 1,445,097.23/1,040.23
  6. Step 6: Final answer
    x = 1,389.21

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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.