Home / 2,553.36-3,520.36-1,667.76

Finding the Fourth Proportional to 2,553.36, 3,520.36 and 1,667.76

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Solution

The fourth proportional to 2,553.36, 3,520.36 and 1,667.76 is: 2,299.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.36 : 3,520.36 = 1,667.76 : x
  2. Step 2: Convert to fraction form
    2,553.36/3,520.36 = 1,667.76/x
  3. Step 3: Cross multiply
    2,553.36x = 3,520.36 × 1,667.76
  4. Step 4: Simplify right side
    2,553.36x = 5,871,115.59
  5. Step 5: Solve for x
    x = 5,871,115.59/2,553.36
  6. Step 6: Final answer
    x = 2,299.37

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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.