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Finding the Fourth Proportional to 1,492, 2,238.03 and 626.32

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Solution

The fourth proportional to 1,492, 2,238.03 and 626.32 is: 939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492 : 2,238.03 = 626.32 : x
  2. Step 2: Convert to fraction form
    1,492/2,238.03 = 626.32/x
  3. Step 3: Cross multiply
    1,492x = 2,238.03 × 626.32
  4. Step 4: Simplify right side
    1,492x = 1,401,722.95
  5. Step 5: Solve for x
    x = 1,401,722.95/1,492
  6. Step 6: Final answer
    x = 939.49

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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.