Home / 4,480.38-6,720.72-2,140.65

Finding the Fourth Proportional to 4,480.38, 6,720.72 and 2,140.65

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Solution

The fourth proportional to 4,480.38, 6,720.72 and 2,140.65 is: 3,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.38 : 6,720.72 = 2,140.65 : x
  2. Step 2: Convert to fraction form
    4,480.38/6,720.72 = 2,140.65/x
  3. Step 3: Cross multiply
    4,480.38x = 6,720.72 × 2,140.65
  4. Step 4: Simplify right side
    4,480.38x = 14,386,709.27
  5. Step 5: Solve for x
    x = 14,386,709.27/4,480.38
  6. Step 6: Final answer
    x = 3,211.05

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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.