Home / 4,505.19-6,219.50-3,105.51

Finding the Fourth Proportional to 4,505.19, 6,219.50 and 3,105.51

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Solution

The fourth proportional to 4,505.19, 6,219.50 and 3,105.51 is: 4,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,505.19 : 6,219.50 = 3,105.51 : x
  2. Step 2: Convert to fraction form
    4,505.19/6,219.50 = 3,105.51/x
  3. Step 3: Cross multiply
    4,505.19x = 6,219.50 × 3,105.51
  4. Step 4: Simplify right side
    4,505.19x = 19,314,703.92
  5. Step 5: Solve for x
    x = 19,314,703.92/4,505.19
  6. Step 6: Final answer
    x = 4,287.21

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Half scale
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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.