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Finding the Fourth Proportional to 1,579.57, 2,369.36 and 929.55

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Solution

The fourth proportional to 1,579.57, 2,369.36 and 929.55 is: 1,394.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.57 : 2,369.36 = 929.55 : x
  2. Step 2: Convert to fraction form
    1,579.57/2,369.36 = 929.55/x
  3. Step 3: Cross multiply
    1,579.57x = 2,369.36 × 929.55
  4. Step 4: Simplify right side
    1,579.57x = 2,202,438.59
  5. Step 5: Solve for x
    x = 2,202,438.59/1,579.57
  6. Step 6: Final answer
    x = 1,394.33

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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.