Home / 1,712.09-2,362.70-1,003.78

Finding the Fourth Proportional to 1,712.09, 2,362.70 and 1,003.78

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Solution

The fourth proportional to 1,712.09, 2,362.70 and 1,003.78 is: 1,385.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.09 : 2,362.70 = 1,003.78 : x
  2. Step 2: Convert to fraction form
    1,712.09/2,362.70 = 1,003.78/x
  3. Step 3: Cross multiply
    1,712.09x = 2,362.70 × 1,003.78
  4. Step 4: Simplify right side
    1,712.09x = 2,371,623.84
  5. Step 5: Solve for x
    x = 2,371,623.84/1,712.09
  6. Step 6: Final answer
    x = 1,385.22

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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.