Home / 4,980.24-6,872.73-2,742.20

Finding the Fourth Proportional to 4,980.24, 6,872.73 and 2,742.20

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Solution

The fourth proportional to 4,980.24, 6,872.73 and 2,742.20 is: 3,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.24 : 6,872.73 = 2,742.20 : x
  2. Step 2: Convert to fraction form
    4,980.24/6,872.73 = 2,742.20/x
  3. Step 3: Cross multiply
    4,980.24x = 6,872.73 × 2,742.20
  4. Step 4: Simplify right side
    4,980.24x = 18,846,400.21
  5. Step 5: Solve for x
    x = 18,846,400.21/4,980.24
  6. Step 6: Final answer
    x = 3,784.24

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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.