Home / 2,961.12-4,085.78-1,782.27

Finding the Fourth Proportional to 2,961.12, 4,085.78 and 1,782.27

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Solution

The fourth proportional to 2,961.12, 4,085.78 and 1,782.27 is: 2,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.12 : 4,085.78 = 1,782.27 : x
  2. Step 2: Convert to fraction form
    2,961.12/4,085.78 = 1,782.27/x
  3. Step 3: Cross multiply
    2,961.12x = 4,085.78 × 1,782.27
  4. Step 4: Simplify right side
    2,961.12x = 7,281,954.21
  5. Step 5: Solve for x
    x = 7,281,954.21/2,961.12
  6. Step 6: Final answer
    x = 2,459.19

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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.