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Finding the Fourth Proportional to 2,054.85, 3,082.76 and 668.32

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Solution

The fourth proportional to 2,054.85, 3,082.76 and 668.32 is: 1,002.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,054.85 : 3,082.76 = 668.32 : x
  2. Step 2: Convert to fraction form
    2,054.85/3,082.76 = 668.32/x
  3. Step 3: Cross multiply
    2,054.85x = 3,082.76 × 668.32
  4. Step 4: Simplify right side
    2,054.85x = 2,060,270.16
  5. Step 5: Solve for x
    x = 2,060,270.16/2,054.85
  6. Step 6: Final answer
    x = 1,002.64

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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.