Home / 5,189.03-7,782.39-1,490.43

Finding the Fourth Proportional to 5,189.03, 7,782.39 and 1,490.43

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Solution

The fourth proportional to 5,189.03, 7,782.39 and 1,490.43 is: 2,235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.03 : 7,782.39 = 1,490.43 : x
  2. Step 2: Convert to fraction form
    5,189.03/7,782.39 = 1,490.43/x
  3. Step 3: Cross multiply
    5,189.03x = 7,782.39 × 1,490.43
  4. Step 4: Simplify right side
    5,189.03x = 11,599,107.53
  5. Step 5: Solve for x
    x = 11,599,107.53/5,189.03
  6. Step 6: Final answer
    x = 2,235.32

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1.5x scale

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.