Home / 1,040.22-1,427.58-941.76

Finding the Fourth Proportional to 1,040.22, 1,427.58 and 941.76

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Solution

The fourth proportional to 1,040.22, 1,427.58 and 941.76 is: 1,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.22 : 1,427.58 = 941.76 : x
  2. Step 2: Convert to fraction form
    1,040.22/1,427.58 = 941.76/x
  3. Step 3: Cross multiply
    1,040.22x = 1,427.58 × 941.76
  4. Step 4: Simplify right side
    1,040.22x = 1,344,437.74
  5. Step 5: Solve for x
    x = 1,344,437.74/1,040.22
  6. Step 6: Final answer
    x = 1,292.46

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.