Home / 2,339.16-3,227.70-1,291.20

Finding the Fourth Proportional to 2,339.16, 3,227.70 and 1,291.20

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Solution

The fourth proportional to 2,339.16, 3,227.70 and 1,291.20 is: 1,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.16 : 3,227.70 = 1,291.20 : x
  2. Step 2: Convert to fraction form
    2,339.16/3,227.70 = 1,291.20/x
  3. Step 3: Cross multiply
    2,339.16x = 3,227.70 × 1,291.20
  4. Step 4: Simplify right side
    2,339.16x = 4,167,606.24
  5. Step 5: Solve for x
    x = 4,167,606.24/2,339.16
  6. Step 6: Final answer
    x = 1,781.67

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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.