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Finding the Fourth Proportional to 1,862.79, 2,794.32 and 630.33

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Solution

The fourth proportional to 1,862.79, 2,794.32 and 630.33 is: 945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.79 : 2,794.32 = 630.33 : x
  2. Step 2: Convert to fraction form
    1,862.79/2,794.32 = 630.33/x
  3. Step 3: Cross multiply
    1,862.79x = 2,794.32 × 630.33
  4. Step 4: Simplify right side
    1,862.79x = 1,761,343.73
  5. Step 5: Solve for x
    x = 1,761,343.73/1,862.79
  6. Step 6: Final answer
    x = 945.54

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1.5x scale

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.