Home / 3,851.56-5,313.57-2,955.46

Finding the Fourth Proportional to 3,851.56, 5,313.57 and 2,955.46

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Solution

The fourth proportional to 3,851.56, 5,313.57 and 2,955.46 is: 4,077.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.56 : 5,313.57 = 2,955.46 : x
  2. Step 2: Convert to fraction form
    3,851.56/5,313.57 = 2,955.46/x
  3. Step 3: Cross multiply
    3,851.56x = 5,313.57 × 2,955.46
  4. Step 4: Simplify right side
    3,851.56x = 15,704,043.59
  5. Step 5: Solve for x
    x = 15,704,043.59/3,851.56
  6. Step 6: Final answer
    x = 4,077.32

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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.