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Finding the Fourth Proportional to 2,082.58, 3,123.79 and 522.58

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Solution

The fourth proportional to 2,082.58, 3,123.79 and 522.58 is: 783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.58 : 3,123.79 = 522.58 : x
  2. Step 2: Convert to fraction form
    2,082.58/3,123.79 = 522.58/x
  3. Step 3: Cross multiply
    2,082.58x = 3,123.79 × 522.58
  4. Step 4: Simplify right side
    2,082.58x = 1,632,430.18
  5. Step 5: Solve for x
    x = 1,632,430.18/2,082.58
  6. Step 6: Final answer
    x = 783.85

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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.