Home / 2,005.24-2,767.08-1,219.20

Finding the Fourth Proportional to 2,005.24, 2,767.08 and 1,219.20

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Solution

The fourth proportional to 2,005.24, 2,767.08 and 1,219.20 is: 1,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.24 : 2,767.08 = 1,219.20 : x
  2. Step 2: Convert to fraction form
    2,005.24/2,767.08 = 1,219.20/x
  3. Step 3: Cross multiply
    2,005.24x = 2,767.08 × 1,219.20
  4. Step 4: Simplify right side
    2,005.24x = 3,373,623.94
  5. Step 5: Solve for x
    x = 3,373,623.94/2,005.24
  6. Step 6: Final answer
    x = 1,682.40

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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.