Home / 2,209.18-3,048.68-1,264.99

Finding the Fourth Proportional to 2,209.18, 3,048.68 and 1,264.99

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Solution

The fourth proportional to 2,209.18, 3,048.68 and 1,264.99 is: 1,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.18 : 3,048.68 = 1,264.99 : x
  2. Step 2: Convert to fraction form
    2,209.18/3,048.68 = 1,264.99/x
  3. Step 3: Cross multiply
    2,209.18x = 3,048.68 × 1,264.99
  4. Step 4: Simplify right side
    2,209.18x = 3,856,547.81
  5. Step 5: Solve for x
    x = 3,856,547.81/2,209.18
  6. Step 6: Final answer
    x = 1,745.69

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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.