Home / 2,176.85-3,002.73-1,292.47

Finding the Fourth Proportional to 2,176.85, 3,002.73 and 1,292.47

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Solution

The fourth proportional to 2,176.85, 3,002.73 and 1,292.47 is: 1,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.85 : 3,002.73 = 1,292.47 : x
  2. Step 2: Convert to fraction form
    2,176.85/3,002.73 = 1,292.47/x
  3. Step 3: Cross multiply
    2,176.85x = 3,002.73 × 1,292.47
  4. Step 4: Simplify right side
    2,176.85x = 3,880,938.44
  5. Step 5: Solve for x
    x = 3,880,938.44/2,176.85
  6. Step 6: Final answer
    x = 1,782.82

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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.