Home / 1,568.68-2,164.34-938.95

Finding the Fourth Proportional to 1,568.68, 2,164.34 and 938.95

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Solution

The fourth proportional to 1,568.68, 2,164.34 and 938.95 is: 1,295.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.68 : 2,164.34 = 938.95 : x
  2. Step 2: Convert to fraction form
    1,568.68/2,164.34 = 938.95/x
  3. Step 3: Cross multiply
    1,568.68x = 2,164.34 × 938.95
  4. Step 4: Simplify right side
    1,568.68x = 2,032,203.98
  5. Step 5: Solve for x
    x = 2,032,203.98/1,568.68
  6. Step 6: Final answer
    x = 1,295.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.