Home / 4,480-6,721.62-4,120.36

Finding the Fourth Proportional to 4,480, 6,721.62 and 4,120.36

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Solution

The fourth proportional to 4,480, 6,721.62 and 4,120.36 is: 6,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480 : 6,721.62 = 4,120.36 : x
  2. Step 2: Convert to fraction form
    4,480/6,721.62 = 4,120.36/x
  3. Step 3: Cross multiply
    4,480x = 6,721.62 × 4,120.36
  4. Step 4: Simplify right side
    4,480x = 27,695,494.18
  5. Step 5: Solve for x
    x = 27,695,494.18/4,480
  6. Step 6: Final answer
    x = 6,182.03

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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.