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Finding the Fourth Proportional to 1,237.02, 1,707.17 and 713.09

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Solution

The fourth proportional to 1,237.02, 1,707.17 and 713.09 is: 984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237.02 : 1,707.17 = 713.09 : x
  2. Step 2: Convert to fraction form
    1,237.02/1,707.17 = 713.09/x
  3. Step 3: Cross multiply
    1,237.02x = 1,707.17 × 713.09
  4. Step 4: Simplify right side
    1,237.02x = 1,217,353.75
  5. Step 5: Solve for x
    x = 1,217,353.75/1,237.02
  6. Step 6: Final answer
    x = 984.10

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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.