Home / 2,191.12-3,024-1,259.68

Finding the Fourth Proportional to 2,191.12, 3,024 and 1,259.68

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Solution

The fourth proportional to 2,191.12, 3,024 and 1,259.68 is: 1,738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.12 : 3,024 = 1,259.68 : x
  2. Step 2: Convert to fraction form
    2,191.12/3,024 = 1,259.68/x
  3. Step 3: Cross multiply
    2,191.12x = 3,024 × 1,259.68
  4. Step 4: Simplify right side
    2,191.12x = 3,809,272.32
  5. Step 5: Solve for x
    x = 3,809,272.32/2,191.12
  6. Step 6: Final answer
    x = 1,738.50

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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.