Home / 6,145.36-8,480.64-3,350.80

Finding the Fourth Proportional to 6,145.36, 8,480.64 and 3,350.80

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Solution

The fourth proportional to 6,145.36, 8,480.64 and 3,350.80 is: 4,624.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.36 : 8,480.64 = 3,350.80 : x
  2. Step 2: Convert to fraction form
    6,145.36/8,480.64 = 3,350.80/x
  3. Step 3: Cross multiply
    6,145.36x = 8,480.64 × 3,350.80
  4. Step 4: Simplify right side
    6,145.36x = 28,416,928.51
  5. Step 5: Solve for x
    x = 28,416,928.51/6,145.36
  6. Step 6: Final answer
    x = 4,624.13

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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.