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Finding the Fourth Proportional to 1,713.15, 2,363.78 and 1,004.81

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Solution

The fourth proportional to 1,713.15, 2,363.78 and 1,004.81 is: 1,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.15 : 2,363.78 = 1,004.81 : x
  2. Step 2: Convert to fraction form
    1,713.15/2,363.78 = 1,004.81/x
  3. Step 3: Cross multiply
    1,713.15x = 2,363.78 × 1,004.81
  4. Step 4: Simplify right side
    1,713.15x = 2,375,140.47
  5. Step 5: Solve for x
    x = 2,375,140.47/1,713.15
  6. Step 6: Final answer
    x = 1,386.42

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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.