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Finding the Fourth Proportional to 2,358.78, 3,536.71 and 798.63

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Solution

The fourth proportional to 2,358.78, 3,536.71 and 798.63 is: 1,197.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,358.78 : 3,536.71 = 798.63 : x
  2. Step 2: Convert to fraction form
    2,358.78/3,536.71 = 798.63/x
  3. Step 3: Cross multiply
    2,358.78x = 3,536.71 × 798.63
  4. Step 4: Simplify right side
    2,358.78x = 2,824,522.71
  5. Step 5: Solve for x
    x = 2,824,522.71/2,358.78
  6. Step 6: Final answer
    x = 1,197.45

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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.