Home / 1,712.47-2,362.62-1,003.72

Finding the Fourth Proportional to 1,712.47, 2,362.62 and 1,003.72

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Solution

The fourth proportional to 1,712.47, 2,362.62 and 1,003.72 is: 1,384.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.47 : 2,362.62 = 1,003.72 : x
  2. Step 2: Convert to fraction form
    1,712.47/2,362.62 = 1,003.72/x
  3. Step 3: Cross multiply
    1,712.47x = 2,362.62 × 1,003.72
  4. Step 4: Simplify right side
    1,712.47x = 2,371,408.95
  5. Step 5: Solve for x
    x = 2,371,408.95/1,712.47
  6. Step 6: Final answer
    x = 1,384.79

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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.