Home / 1,190.08-1,784.24-540.80

Finding the Fourth Proportional to 1,190.08, 1,784.24 and 540.80

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Solution

The fourth proportional to 1,190.08, 1,784.24 and 540.80 is: 810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.08 : 1,784.24 = 540.80 : x
  2. Step 2: Convert to fraction form
    1,190.08/1,784.24 = 540.80/x
  3. Step 3: Cross multiply
    1,190.08x = 1,784.24 × 540.80
  4. Step 4: Simplify right side
    1,190.08x = 964,916.99
  5. Step 5: Solve for x
    x = 964,916.99/1,190.08
  6. Step 6: Final answer
    x = 810.80

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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.