Home / 2,771.19-4,157.16-2,278.08

Finding the Fourth Proportional to 2,771.19, 4,157.16 and 2,278.08

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Solution

The fourth proportional to 2,771.19, 4,157.16 and 2,278.08 is: 3,417.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.19 : 4,157.16 = 2,278.08 : x
  2. Step 2: Convert to fraction form
    2,771.19/4,157.16 = 2,278.08/x
  3. Step 3: Cross multiply
    2,771.19x = 4,157.16 × 2,278.08
  4. Step 4: Simplify right side
    2,771.19x = 9,470,343.05
  5. Step 5: Solve for x
    x = 9,470,343.05/2,771.19
  6. Step 6: Final answer
    x = 3,417.43

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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.