Home / 3,650.69-5,037.90-2,078.75

Finding the Fourth Proportional to 3,650.69, 5,037.90 and 2,078.75

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Solution

The fourth proportional to 3,650.69, 5,037.90 and 2,078.75 is: 2,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.69 : 5,037.90 = 2,078.75 : x
  2. Step 2: Convert to fraction form
    3,650.69/5,037.90 = 2,078.75/x
  3. Step 3: Cross multiply
    3,650.69x = 5,037.90 × 2,078.75
  4. Step 4: Simplify right side
    3,650.69x = 10,472,534.63
  5. Step 5: Solve for x
    x = 10,472,534.63/3,650.69
  6. Step 6: Final answer
    x = 2,868.65

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1.5x scale

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.