Home / 3,102.35-4,276.31-2,438.06

Finding the Fourth Proportional to 3,102.35, 4,276.31 and 2,438.06

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Solution

The fourth proportional to 3,102.35, 4,276.31 and 2,438.06 is: 3,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.35 : 4,276.31 = 2,438.06 : x
  2. Step 2: Convert to fraction form
    3,102.35/4,276.31 = 2,438.06/x
  3. Step 3: Cross multiply
    3,102.35x = 4,276.31 × 2,438.06
  4. Step 4: Simplify right side
    3,102.35x = 10,425,866.79
  5. Step 5: Solve for x
    x = 10,425,866.79/3,102.35
  6. Step 6: Final answer
    x = 3,360.64

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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.