Home / 2,840.91-3,919.08-2,210.34

Finding the Fourth Proportional to 2,840.91, 3,919.08 and 2,210.34

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Solution

The fourth proportional to 2,840.91, 3,919.08 and 2,210.34 is: 3,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.91 : 3,919.08 = 2,210.34 : x
  2. Step 2: Convert to fraction form
    2,840.91/3,919.08 = 2,210.34/x
  3. Step 3: Cross multiply
    2,840.91x = 3,919.08 × 2,210.34
  4. Step 4: Simplify right side
    2,840.91x = 8,662,499.29
  5. Step 5: Solve for x
    x = 8,662,499.29/2,840.91
  6. Step 6: Final answer
    x = 3,049.20

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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.