Home / 1,426.01-2,139.30-548.51

Finding the Fourth Proportional to 1,426.01, 2,139.30 and 548.51

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Solution

The fourth proportional to 1,426.01, 2,139.30 and 548.51 is: 822.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.01 : 2,139.30 = 548.51 : x
  2. Step 2: Convert to fraction form
    1,426.01/2,139.30 = 548.51/x
  3. Step 3: Cross multiply
    1,426.01x = 2,139.30 × 548.51
  4. Step 4: Simplify right side
    1,426.01x = 1,173,416.75
  5. Step 5: Solve for x
    x = 1,173,416.75/1,426.01
  6. Step 6: Final answer
    x = 822.87

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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.