Home / 3,415.72-5,122.69-1,224.13

Finding the Fourth Proportional to 3,415.72, 5,122.69 and 1,224.13

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Solution

The fourth proportional to 3,415.72, 5,122.69 and 1,224.13 is: 1,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.72 : 5,122.69 = 1,224.13 : x
  2. Step 2: Convert to fraction form
    3,415.72/5,122.69 = 1,224.13/x
  3. Step 3: Cross multiply
    3,415.72x = 5,122.69 × 1,224.13
  4. Step 4: Simplify right side
    3,415.72x = 6,270,838.51
  5. Step 5: Solve for x
    x = 6,270,838.51/3,415.72
  6. Step 6: Final answer
    x = 1,835.88

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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.