Home / 4,808.19-7,211.57-1,520.86

Finding the Fourth Proportional to 4,808.19, 7,211.57 and 1,520.86

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Solution

The fourth proportional to 4,808.19, 7,211.57 and 1,520.86 is: 2,281.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,808.19 : 7,211.57 = 1,520.86 : x
  2. Step 2: Convert to fraction form
    4,808.19/7,211.57 = 1,520.86/x
  3. Step 3: Cross multiply
    4,808.19x = 7,211.57 × 1,520.86
  4. Step 4: Simplify right side
    4,808.19x = 10,967,782.65
  5. Step 5: Solve for x
    x = 10,967,782.65/4,808.19
  6. Step 6: Final answer
    x = 2,281.06

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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.