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Finding the Fourth Proportional to 802.26, 1,106.37 and 708.66

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Solution

The fourth proportional to 802.26, 1,106.37 and 708.66 is: 977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.26 : 1,106.37 = 708.66 : x
  2. Step 2: Convert to fraction form
    802.26/1,106.37 = 708.66/x
  3. Step 3: Cross multiply
    802.26x = 1,106.37 × 708.66
  4. Step 4: Simplify right side
    802.26x = 784,040.16
  5. Step 5: Solve for x
    x = 784,040.16/802.26
  6. Step 6: Final answer
    x = 977.29

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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.