Home / 1,526.55-2,288.80-786.61

Finding the Fourth Proportional to 1,526.55, 2,288.80 and 786.61

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Solution

The fourth proportional to 1,526.55, 2,288.80 and 786.61 is: 1,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.55 : 2,288.80 = 786.61 : x
  2. Step 2: Convert to fraction form
    1,526.55/2,288.80 = 786.61/x
  3. Step 3: Cross multiply
    1,526.55x = 2,288.80 × 786.61
  4. Step 4: Simplify right side
    1,526.55x = 1,800,392.97
  5. Step 5: Solve for x
    x = 1,800,392.97/1,526.55
  6. Step 6: Final answer
    x = 1,179.39

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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.