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Finding the Fourth Proportional to 1,579.47, 2,369.21 and 483.69

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Solution

The fourth proportional to 1,579.47, 2,369.21 and 483.69 is: 725.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.47 : 2,369.21 = 483.69 : x
  2. Step 2: Convert to fraction form
    1,579.47/2,369.21 = 483.69/x
  3. Step 3: Cross multiply
    1,579.47x = 2,369.21 × 483.69
  4. Step 4: Simplify right side
    1,579.47x = 1,145,960.77
  5. Step 5: Solve for x
    x = 1,145,960.77/1,579.47
  6. Step 6: Final answer
    x = 725.54

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Double scale
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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.