Home / 3,745.92-5,620.90-1,407.52

Finding the Fourth Proportional to 3,745.92, 5,620.90 and 1,407.52

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Solution

The fourth proportional to 3,745.92, 5,620.90 and 1,407.52 is: 2,112.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.92 : 5,620.90 = 1,407.52 : x
  2. Step 2: Convert to fraction form
    3,745.92/5,620.90 = 1,407.52/x
  3. Step 3: Cross multiply
    3,745.92x = 5,620.90 × 1,407.52
  4. Step 4: Simplify right side
    3,745.92x = 7,911,529.17
  5. Step 5: Solve for x
    x = 7,911,529.17/3,745.92
  6. Step 6: Final answer
    x = 2,112.04

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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.