Home / 2,603.64-3,900.87-1,368.12

Finding the Fourth Proportional to 2,603.64, 3,900.87 and 1,368.12

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Solution

The fourth proportional to 2,603.64, 3,900.87 and 1,368.12 is: 2,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.64 : 3,900.87 = 1,368.12 : x
  2. Step 2: Convert to fraction form
    2,603.64/3,900.87 = 1,368.12/x
  3. Step 3: Cross multiply
    2,603.64x = 3,900.87 × 1,368.12
  4. Step 4: Simplify right side
    2,603.64x = 5,336,858.26
  5. Step 5: Solve for x
    x = 5,336,858.26/2,603.64
  6. Step 6: Final answer
    x = 2,049.77

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1.5x scale

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.