Home / 4,140.60-5,716.32-3,020.40

Finding the Fourth Proportional to 4,140.60, 5,716.32 and 3,020.40

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Solution

The fourth proportional to 4,140.60, 5,716.32 and 3,020.40 is: 4,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.60 : 5,716.32 = 3,020.40 : x
  2. Step 2: Convert to fraction form
    4,140.60/5,716.32 = 3,020.40/x
  3. Step 3: Cross multiply
    4,140.60x = 5,716.32 × 3,020.40
  4. Step 4: Simplify right side
    4,140.60x = 17,265,572.93
  5. Step 5: Solve for x
    x = 17,265,572.93/4,140.60
  6. Step 6: Final answer
    x = 4,169.82

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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.