Home / 2,491.18-3,739.07-1,259.45

Finding the Fourth Proportional to 2,491.18, 3,739.07 and 1,259.45

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Solution

The fourth proportional to 2,491.18, 3,739.07 and 1,259.45 is: 1,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.18 : 3,739.07 = 1,259.45 : x
  2. Step 2: Convert to fraction form
    2,491.18/3,739.07 = 1,259.45/x
  3. Step 3: Cross multiply
    2,491.18x = 3,739.07 × 1,259.45
  4. Step 4: Simplify right side
    2,491.18x = 4,709,170.19
  5. Step 5: Solve for x
    x = 4,709,170.19/2,491.18
  6. Step 6: Final answer
    x = 1,890.34

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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.