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Finding the Fourth Proportional to 1,924.70, 2,887.45 and 626.06

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Solution

The fourth proportional to 1,924.70, 2,887.45 and 626.06 is: 939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.70 : 2,887.45 = 626.06 : x
  2. Step 2: Convert to fraction form
    1,924.70/2,887.45 = 626.06/x
  3. Step 3: Cross multiply
    1,924.70x = 2,887.45 × 626.06
  4. Step 4: Simplify right side
    1,924.70x = 1,807,722.60
  5. Step 5: Solve for x
    x = 1,807,722.60/1,924.70
  6. Step 6: Final answer
    x = 939.23

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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.