Home / 1,351.24-2,026.10-803.80

Finding the Fourth Proportional to 1,351.24, 2,026.10 and 803.80

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Solution

The fourth proportional to 1,351.24, 2,026.10 and 803.80 is: 1,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.24 : 2,026.10 = 803.80 : x
  2. Step 2: Convert to fraction form
    1,351.24/2,026.10 = 803.80/x
  3. Step 3: Cross multiply
    1,351.24x = 2,026.10 × 803.80
  4. Step 4: Simplify right side
    1,351.24x = 1,628,579.18
  5. Step 5: Solve for x
    x = 1,628,579.18/1,351.24
  6. Step 6: Final answer
    x = 1,205.25

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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.