Home / 2,667.60-4,001.34-1,205.70

Finding the Fourth Proportional to 2,667.60, 4,001.34 and 1,205.70

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Solution

The fourth proportional to 2,667.60, 4,001.34 and 1,205.70 is: 1,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,667.60 : 4,001.34 = 1,205.70 : x
  2. Step 2: Convert to fraction form
    2,667.60/4,001.34 = 1,205.70/x
  3. Step 3: Cross multiply
    2,667.60x = 4,001.34 × 1,205.70
  4. Step 4: Simplify right side
    2,667.60x = 4,824,415.64
  5. Step 5: Solve for x
    x = 4,824,415.64/2,667.60
  6. Step 6: Final answer
    x = 1,808.52

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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.