Home / 2,291.35-3,162.07-1,243.41

Finding the Fourth Proportional to 2,291.35, 3,162.07 and 1,243.41

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Solution

The fourth proportional to 2,291.35, 3,162.07 and 1,243.41 is: 1,715.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.35 : 3,162.07 = 1,243.41 : x
  2. Step 2: Convert to fraction form
    2,291.35/3,162.07 = 1,243.41/x
  3. Step 3: Cross multiply
    2,291.35x = 3,162.07 × 1,243.41
  4. Step 4: Simplify right side
    2,291.35x = 3,931,746.35
  5. Step 5: Solve for x
    x = 3,931,746.35/2,291.35
  6. Step 6: Final answer
    x = 1,715.91

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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.