Home / 1,485.69-2,226.70-792.53

Finding the Fourth Proportional to 1,485.69, 2,226.70 and 792.53

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Solution

The fourth proportional to 1,485.69, 2,226.70 and 792.53 is: 1,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.69 : 2,226.70 = 792.53 : x
  2. Step 2: Convert to fraction form
    1,485.69/2,226.70 = 792.53/x
  3. Step 3: Cross multiply
    1,485.69x = 2,226.70 × 792.53
  4. Step 4: Simplify right side
    1,485.69x = 1,764,726.55
  5. Step 5: Solve for x
    x = 1,764,726.55/1,485.69
  6. Step 6: Final answer
    x = 1,187.82

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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.