Home / 2,812.20-3,881.16-1,633.32

Finding the Fourth Proportional to 2,812.20, 3,881.16 and 1,633.32

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Solution

The fourth proportional to 2,812.20, 3,881.16 and 1,633.32 is: 2,254.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.20 : 3,881.16 = 1,633.32 : x
  2. Step 2: Convert to fraction form
    2,812.20/3,881.16 = 1,633.32/x
  3. Step 3: Cross multiply
    2,812.20x = 3,881.16 × 1,633.32
  4. Step 4: Simplify right side
    2,812.20x = 6,339,176.25
  5. Step 5: Solve for x
    x = 6,339,176.25/2,812.20
  6. Step 6: Final answer
    x = 2,254.17

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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.