Home / 2,771.02-3,818.21-1,885.28

Finding the Fourth Proportional to 2,771.02, 3,818.21 and 1,885.28

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Solution

The fourth proportional to 2,771.02, 3,818.21 and 1,885.28 is: 2,597.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.02 : 3,818.21 = 1,885.28 : x
  2. Step 2: Convert to fraction form
    2,771.02/3,818.21 = 1,885.28/x
  3. Step 3: Cross multiply
    2,771.02x = 3,818.21 × 1,885.28
  4. Step 4: Simplify right side
    2,771.02x = 7,198,409.21
  5. Step 5: Solve for x
    x = 7,198,409.21/2,771.02
  6. Step 6: Final answer
    x = 2,597.75

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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.