Home / 2,176.34-3,002.92-1,291.82

Finding the Fourth Proportional to 2,176.34, 3,002.92 and 1,291.82

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Solution

The fourth proportional to 2,176.34, 3,002.92 and 1,291.82 is: 1,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.34 : 3,002.92 = 1,291.82 : x
  2. Step 2: Convert to fraction form
    2,176.34/3,002.92 = 1,291.82/x
  3. Step 3: Cross multiply
    2,176.34x = 3,002.92 × 1,291.82
  4. Step 4: Simplify right side
    2,176.34x = 3,879,232.11
  5. Step 5: Solve for x
    x = 3,879,232.11/2,176.34
  6. Step 6: Final answer
    x = 1,782.46

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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.