Home / 1,453.08-2,005.23-789.93

Finding the Fourth Proportional to 1,453.08, 2,005.23 and 789.93

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Solution

The fourth proportional to 1,453.08, 2,005.23 and 789.93 is: 1,090.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453.08 : 2,005.23 = 789.93 : x
  2. Step 2: Convert to fraction form
    1,453.08/2,005.23 = 789.93/x
  3. Step 3: Cross multiply
    1,453.08x = 2,005.23 × 789.93
  4. Step 4: Simplify right side
    1,453.08x = 1,583,991.33
  5. Step 5: Solve for x
    x = 1,583,991.33/1,453.08
  6. Step 6: Final answer
    x = 1,090.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.