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Finding the Fourth Proportional to 1,712.81, 2,363.53 and 1,004.57

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Solution

The fourth proportional to 1,712.81, 2,363.53 and 1,004.57 is: 1,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.81 : 2,363.53 = 1,004.57 : x
  2. Step 2: Convert to fraction form
    1,712.81/2,363.53 = 1,004.57/x
  3. Step 3: Cross multiply
    1,712.81x = 2,363.53 × 1,004.57
  4. Step 4: Simplify right side
    1,712.81x = 2,374,331.33
  5. Step 5: Solve for x
    x = 2,374,331.33/1,712.81
  6. Step 6: Final answer
    x = 1,386.22

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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.