Home / 2,455.16-3,686.42-2,112.22

Finding the Fourth Proportional to 2,455.16, 3,686.42 and 2,112.22

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Solution

The fourth proportional to 2,455.16, 3,686.42 and 2,112.22 is: 3,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.16 : 3,686.42 = 2,112.22 : x
  2. Step 2: Convert to fraction form
    2,455.16/3,686.42 = 2,112.22/x
  3. Step 3: Cross multiply
    2,455.16x = 3,686.42 × 2,112.22
  4. Step 4: Simplify right side
    2,455.16x = 7,786,526.12
  5. Step 5: Solve for x
    x = 7,786,526.12/2,455.16
  6. Step 6: Final answer
    x = 3,171.50

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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.