Home / 3,782.72-5,219.38-2,210.51

Finding the Fourth Proportional to 3,782.72, 5,219.38 and 2,210.51

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Solution

The fourth proportional to 3,782.72, 5,219.38 and 2,210.51 is: 3,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.72 : 5,219.38 = 2,210.51 : x
  2. Step 2: Convert to fraction form
    3,782.72/5,219.38 = 2,210.51/x
  3. Step 3: Cross multiply
    3,782.72x = 5,219.38 × 2,210.51
  4. Step 4: Simplify right side
    3,782.72x = 11,537,491.68
  5. Step 5: Solve for x
    x = 11,537,491.68/3,782.72
  6. Step 6: Final answer
    x = 3,050.05

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.