Home / 3,110.40-4,667.70-1,261.50

Finding the Fourth Proportional to 3,110.40, 4,667.70 and 1,261.50

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Solution

The fourth proportional to 3,110.40, 4,667.70 and 1,261.50 is: 1,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.40 : 4,667.70 = 1,261.50 : x
  2. Step 2: Convert to fraction form
    3,110.40/4,667.70 = 1,261.50/x
  3. Step 3: Cross multiply
    3,110.40x = 4,667.70 × 1,261.50
  4. Step 4: Simplify right side
    3,110.40x = 5,888,303.55
  5. Step 5: Solve for x
    x = 5,888,303.55/3,110.40
  6. Step 6: Final answer
    x = 1,893.10

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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.