Home / 6,146.77-8,480.01-3,790.21

Finding the Fourth Proportional to 6,146.77, 8,480.01 and 3,790.21

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Solution

The fourth proportional to 6,146.77, 8,480.01 and 3,790.21 is: 5,228.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,146.77 : 8,480.01 = 3,790.21 : x
  2. Step 2: Convert to fraction form
    6,146.77/8,480.01 = 3,790.21/x
  3. Step 3: Cross multiply
    6,146.77x = 8,480.01 × 3,790.21
  4. Step 4: Simplify right side
    6,146.77x = 32,141,018.70
  5. Step 5: Solve for x
    x = 32,141,018.70/6,146.77
  6. Step 6: Final answer
    x = 5,228.93

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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.