Home / 1,712.22-2,362.88-926.28

Finding the Fourth Proportional to 1,712.22, 2,362.88 and 926.28

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Solution

The fourth proportional to 1,712.22, 2,362.88 and 926.28 is: 1,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.22 : 2,362.88 = 926.28 : x
  2. Step 2: Convert to fraction form
    1,712.22/2,362.88 = 926.28/x
  3. Step 3: Cross multiply
    1,712.22x = 2,362.88 × 926.28
  4. Step 4: Simplify right side
    1,712.22x = 2,188,688.49
  5. Step 5: Solve for x
    x = 2,188,688.49/1,712.22
  6. Step 6: Final answer
    x = 1,278.28

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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.