Home / 2,840.46-4,256.75-2,146.56

Finding the Fourth Proportional to 2,840.46, 4,256.75 and 2,146.56

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Solution

The fourth proportional to 2,840.46, 4,256.75 and 2,146.56 is: 3,216.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.46 : 4,256.75 = 2,146.56 : x
  2. Step 2: Convert to fraction form
    2,840.46/4,256.75 = 2,146.56/x
  3. Step 3: Cross multiply
    2,840.46x = 4,256.75 × 2,146.56
  4. Step 4: Simplify right side
    2,840.46x = 9,137,337.26
  5. Step 5: Solve for x
    x = 9,137,337.26/2,840.46
  6. Step 6: Final answer
    x = 3,216.86

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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.