Home / 3,015.12-4,160.04-1,755.60

Finding the Fourth Proportional to 3,015.12, 4,160.04 and 1,755.60

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Solution

The fourth proportional to 3,015.12, 4,160.04 and 1,755.60 is: 2,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.12 : 4,160.04 = 1,755.60 : x
  2. Step 2: Convert to fraction form
    3,015.12/4,160.04 = 1,755.60/x
  3. Step 3: Cross multiply
    3,015.12x = 4,160.04 × 1,755.60
  4. Step 4: Simplify right side
    3,015.12x = 7,303,366.22
  5. Step 5: Solve for x
    x = 7,303,366.22/3,015.12
  6. Step 6: Final answer
    x = 2,422.25

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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.