Home / 1,014.24-1,401.84-926.40

Finding the Fourth Proportional to 1,014.24, 1,401.84 and 926.40

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Solution

The fourth proportional to 1,014.24, 1,401.84 and 926.40 is: 1,280.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.24 : 1,401.84 = 926.40 : x
  2. Step 2: Convert to fraction form
    1,014.24/1,401.84 = 926.40/x
  3. Step 3: Cross multiply
    1,014.24x = 1,401.84 × 926.40
  4. Step 4: Simplify right side
    1,014.24x = 1,298,664.58
  5. Step 5: Solve for x
    x = 1,298,664.58/1,014.24
  6. Step 6: Final answer
    x = 1,280.43

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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.