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Finding the Fourth Proportional to 2,802.77, 4,203.09 and 953.34

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Solution

The fourth proportional to 2,802.77, 4,203.09 and 953.34 is: 1,429.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.77 : 4,203.09 = 953.34 : x
  2. Step 2: Convert to fraction form
    2,802.77/4,203.09 = 953.34/x
  3. Step 3: Cross multiply
    2,802.77x = 4,203.09 × 953.34
  4. Step 4: Simplify right side
    2,802.77x = 4,006,958.06
  5. Step 5: Solve for x
    x = 4,006,958.06/2,802.77
  6. Step 6: Final answer
    x = 1,429.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.