Home / 1,682.04-2,321.22-1,178.64

Finding the Fourth Proportional to 1,682.04, 2,321.22 and 1,178.64

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Solution

The fourth proportional to 1,682.04, 2,321.22 and 1,178.64 is: 1,626.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.04 : 2,321.22 = 1,178.64 : x
  2. Step 2: Convert to fraction form
    1,682.04/2,321.22 = 1,178.64/x
  3. Step 3: Cross multiply
    1,682.04x = 2,321.22 × 1,178.64
  4. Step 4: Simplify right side
    1,682.04x = 2,735,882.74
  5. Step 5: Solve for x
    x = 2,735,882.74/1,682.04
  6. Step 6: Final answer
    x = 1,626.53

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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.