Home / 1,803.47-2,488.68-1,006.75

Finding the Fourth Proportional to 1,803.47, 2,488.68 and 1,006.75

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Solution

The fourth proportional to 1,803.47, 2,488.68 and 1,006.75 is: 1,389.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.47 : 2,488.68 = 1,006.75 : x
  2. Step 2: Convert to fraction form
    1,803.47/2,488.68 = 1,006.75/x
  3. Step 3: Cross multiply
    1,803.47x = 2,488.68 × 1,006.75
  4. Step 4: Simplify right side
    1,803.47x = 2,505,468.66
  5. Step 5: Solve for x
    x = 2,505,468.66/1,803.47
  6. Step 6: Final answer
    x = 1,389.25

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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.