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Finding the Fourth Proportional to 1,358.49, 2,038.41 and 536.55

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Solution

The fourth proportional to 1,358.49, 2,038.41 and 536.55 is: 805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.49 : 2,038.41 = 536.55 : x
  2. Step 2: Convert to fraction form
    1,358.49/2,038.41 = 536.55/x
  3. Step 3: Cross multiply
    1,358.49x = 2,038.41 × 536.55
  4. Step 4: Simplify right side
    1,358.49x = 1,093,708.89
  5. Step 5: Solve for x
    x = 1,093,708.89/1,358.49
  6. Step 6: Final answer
    x = 805.09

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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.