Home / 1,928.78-2,893.38-630.24

Finding the Fourth Proportional to 1,928.78, 2,893.38 and 630.24

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Solution

The fourth proportional to 1,928.78, 2,893.38 and 630.24 is: 945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.78 : 2,893.38 = 630.24 : x
  2. Step 2: Convert to fraction form
    1,928.78/2,893.38 = 630.24/x
  3. Step 3: Cross multiply
    1,928.78x = 2,893.38 × 630.24
  4. Step 4: Simplify right side
    1,928.78x = 1,823,523.81
  5. Step 5: Solve for x
    x = 1,823,523.81/1,928.78
  6. Step 6: Final answer
    x = 945.43

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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.