Home / 1,532.86-2,299.26-378.61

Finding the Fourth Proportional to 1,532.86, 2,299.26 and 378.61

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Solution

The fourth proportional to 1,532.86, 2,299.26 and 378.61 is: 567.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.86 : 2,299.26 = 378.61 : x
  2. Step 2: Convert to fraction form
    1,532.86/2,299.26 = 378.61/x
  3. Step 3: Cross multiply
    1,532.86x = 2,299.26 × 378.61
  4. Step 4: Simplify right side
    1,532.86x = 870,522.83
  5. Step 5: Solve for x
    x = 870,522.83/1,532.86
  6. Step 6: Final answer
    x = 567.91

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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.