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Finding the Fourth Proportional to 1,352.49, 2,026.02 and 621.06

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Solution

The fourth proportional to 1,352.49, 2,026.02 and 621.06 is: 930.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352.49 : 2,026.02 = 621.06 : x
  2. Step 2: Convert to fraction form
    1,352.49/2,026.02 = 621.06/x
  3. Step 3: Cross multiply
    1,352.49x = 2,026.02 × 621.06
  4. Step 4: Simplify right side
    1,352.49x = 1,258,279.98
  5. Step 5: Solve for x
    x = 1,258,279.98/1,352.49
  6. Step 6: Final answer
    x = 930.34

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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.