Home / 1,995.48-2,986.32-1,581.12

Finding the Fourth Proportional to 1,995.48, 2,986.32 and 1,581.12

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Solution

The fourth proportional to 1,995.48, 2,986.32 and 1,581.12 is: 2,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.48 : 2,986.32 = 1,581.12 : x
  2. Step 2: Convert to fraction form
    1,995.48/2,986.32 = 1,581.12/x
  3. Step 3: Cross multiply
    1,995.48x = 2,986.32 × 1,581.12
  4. Step 4: Simplify right side
    1,995.48x = 4,721,730.28
  5. Step 5: Solve for x
    x = 4,721,730.28/1,995.48
  6. Step 6: Final answer
    x = 2,366.21

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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.