Home / 7,738.65-11,609.93-3,581.65

Finding the Fourth Proportional to 7,738.65, 11,609.93 and 3,581.65

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Solution

The fourth proportional to 7,738.65, 11,609.93 and 3,581.65 is: 5,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.65 : 11,609.93 = 3,581.65 : x
  2. Step 2: Convert to fraction form
    7,738.65/11,609.93 = 3,581.65/x
  3. Step 3: Cross multiply
    7,738.65x = 11,609.93 × 3,581.65
  4. Step 4: Simplify right side
    7,738.65x = 41,582,685.71
  5. Step 5: Solve for x
    x = 41,582,685.71/7,738.65
  6. Step 6: Final answer
    x = 5,373.38

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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.