Home / 7,725.99-11,590.43-3,109.35

Finding the Fourth Proportional to 7,725.99, 11,590.43 and 3,109.35

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Solution

The fourth proportional to 7,725.99, 11,590.43 and 3,109.35 is: 4,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.99 : 11,590.43 = 3,109.35 : x
  2. Step 2: Convert to fraction form
    7,725.99/11,590.43 = 3,109.35/x
  3. Step 3: Cross multiply
    7,725.99x = 11,590.43 × 3,109.35
  4. Step 4: Simplify right side
    7,725.99x = 36,038,687.97
  5. Step 5: Solve for x
    x = 36,038,687.97/7,725.99
  6. Step 6: Final answer
    x = 4,664.60

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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.