Home / 3,241.60-4,858.35-1,390.57

Finding the Fourth Proportional to 3,241.60, 4,858.35 and 1,390.57

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Solution

The fourth proportional to 3,241.60, 4,858.35 and 1,390.57 is: 2,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.60 : 4,858.35 = 1,390.57 : x
  2. Step 2: Convert to fraction form
    3,241.60/4,858.35 = 1,390.57/x
  3. Step 3: Cross multiply
    3,241.60x = 4,858.35 × 1,390.57
  4. Step 4: Simplify right side
    3,241.60x = 6,755,858.40
  5. Step 5: Solve for x
    x = 6,755,858.40/3,241.60
  6. Step 6: Final answer
    x = 2,084.11

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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.