Home / 1,603.48-2,208.39-1,382.35

Finding the Fourth Proportional to 1,603.48, 2,208.39 and 1,382.35

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Solution

The fourth proportional to 1,603.48, 2,208.39 and 1,382.35 is: 1,903.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.48 : 2,208.39 = 1,382.35 : x
  2. Step 2: Convert to fraction form
    1,603.48/2,208.39 = 1,382.35/x
  3. Step 3: Cross multiply
    1,603.48x = 2,208.39 × 1,382.35
  4. Step 4: Simplify right side
    1,603.48x = 3,052,767.92
  5. Step 5: Solve for x
    x = 3,052,767.92/1,603.48
  6. Step 6: Final answer
    x = 1,903.84

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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.