Home / 3,345.63-4,617.09-2,019.07

Finding the Fourth Proportional to 3,345.63, 4,617.09 and 2,019.07

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Solution

The fourth proportional to 3,345.63, 4,617.09 and 2,019.07 is: 2,786.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.63 : 4,617.09 = 2,019.07 : x
  2. Step 2: Convert to fraction form
    3,345.63/4,617.09 = 2,019.07/x
  3. Step 3: Cross multiply
    3,345.63x = 4,617.09 × 2,019.07
  4. Step 4: Simplify right side
    3,345.63x = 9,322,217.81
  5. Step 5: Solve for x
    x = 9,322,217.81/3,345.63
  6. Step 6: Final answer
    x = 2,786.39

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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.