Home / 2,158.68-2,980.94-1,363.41

Finding the Fourth Proportional to 2,158.68, 2,980.94 and 1,363.41

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Solution

The fourth proportional to 2,158.68, 2,980.94 and 1,363.41 is: 1,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.68 : 2,980.94 = 1,363.41 : x
  2. Step 2: Convert to fraction form
    2,158.68/2,980.94 = 1,363.41/x
  3. Step 3: Cross multiply
    2,158.68x = 2,980.94 × 1,363.41
  4. Step 4: Simplify right side
    2,158.68x = 4,064,236.59
  5. Step 5: Solve for x
    x = 4,064,236.59/2,158.68
  6. Step 6: Final answer
    x = 1,882.74

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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.