Home / 7,185.62-10,778.40-2,255.65

Finding the Fourth Proportional to 7,185.62, 10,778.40 and 2,255.65

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Solution

The fourth proportional to 7,185.62, 10,778.40 and 2,255.65 is: 3,383.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.62 : 10,778.40 = 2,255.65 : x
  2. Step 2: Convert to fraction form
    7,185.62/10,778.40 = 2,255.65/x
  3. Step 3: Cross multiply
    7,185.62x = 10,778.40 × 2,255.65
  4. Step 4: Simplify right side
    7,185.62x = 24,312,271.01
  5. Step 5: Solve for x
    x = 24,312,271.01/7,185.62
  6. Step 6: Final answer
    x = 3,383.46

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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.