Home / 5,189.40-7,782.93-2,554.29

Finding the Fourth Proportional to 5,189.40, 7,782.93 and 2,554.29

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Solution

The fourth proportional to 5,189.40, 7,782.93 and 2,554.29 is: 3,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.40 : 7,782.93 = 2,554.29 : x
  2. Step 2: Convert to fraction form
    5,189.40/7,782.93 = 2,554.29/x
  3. Step 3: Cross multiply
    5,189.40x = 7,782.93 × 2,554.29
  4. Step 4: Simplify right side
    5,189.40x = 19,879,860.27
  5. Step 5: Solve for x
    x = 19,879,860.27/5,189.40
  6. Step 6: Final answer
    x = 3,830.86

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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.