Home / 2,681.28-4,022.43-926.22

Finding the Fourth Proportional to 2,681.28, 4,022.43 and 926.22

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Solution

The fourth proportional to 2,681.28, 4,022.43 and 926.22 is: 1,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.28 : 4,022.43 = 926.22 : x
  2. Step 2: Convert to fraction form
    2,681.28/4,022.43 = 926.22/x
  3. Step 3: Cross multiply
    2,681.28x = 4,022.43 × 926.22
  4. Step 4: Simplify right side
    2,681.28x = 3,725,655.11
  5. Step 5: Solve for x
    x = 3,725,655.11/2,681.28
  6. Step 6: Final answer
    x = 1,389.51

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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.