Home / 2,178.17-3,267.74-717.26

Finding the Fourth Proportional to 2,178.17, 3,267.74 and 717.26

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Solution

The fourth proportional to 2,178.17, 3,267.74 and 717.26 is: 1,076.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.17 : 3,267.74 = 717.26 : x
  2. Step 2: Convert to fraction form
    2,178.17/3,267.74 = 717.26/x
  3. Step 3: Cross multiply
    2,178.17x = 3,267.74 × 717.26
  4. Step 4: Simplify right side
    2,178.17x = 2,343,815.61
  5. Step 5: Solve for x
    x = 2,343,815.61/2,178.17
  6. Step 6: Final answer
    x = 1,076.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.