Home / 2,176.34-3,002.88-1,292.44

Finding the Fourth Proportional to 2,176.34, 3,002.88 and 1,292.44

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Solution

The fourth proportional to 2,176.34, 3,002.88 and 1,292.44 is: 1,783.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.34 : 3,002.88 = 1,292.44 : x
  2. Step 2: Convert to fraction form
    2,176.34/3,002.88 = 1,292.44/x
  3. Step 3: Cross multiply
    2,176.34x = 3,002.88 × 1,292.44
  4. Step 4: Simplify right side
    2,176.34x = 3,881,042.23
  5. Step 5: Solve for x
    x = 3,881,042.23/2,176.34
  6. Step 6: Final answer
    x = 1,783.29

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1.5x scale

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.