Home / 1,426.02-2,138.92-548.94

Finding the Fourth Proportional to 1,426.02, 2,138.92 and 548.94

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Solution

The fourth proportional to 1,426.02, 2,138.92 and 548.94 is: 823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.02 : 2,138.92 = 548.94 : x
  2. Step 2: Convert to fraction form
    1,426.02/2,138.92 = 548.94/x
  3. Step 3: Cross multiply
    1,426.02x = 2,138.92 × 548.94
  4. Step 4: Simplify right side
    1,426.02x = 1,174,138.74
  5. Step 5: Solve for x
    x = 1,174,138.74/1,426.02
  6. Step 6: Final answer
    x = 823.37

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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.