Home / 2,351.79-3,238.65-2,235.15

Finding the Fourth Proportional to 2,351.79, 3,238.65 and 2,235.15

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Solution

The fourth proportional to 2,351.79, 3,238.65 and 2,235.15 is: 3,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.79 : 3,238.65 = 2,235.15 : x
  2. Step 2: Convert to fraction form
    2,351.79/3,238.65 = 2,235.15/x
  3. Step 3: Cross multiply
    2,351.79x = 3,238.65 × 2,235.15
  4. Step 4: Simplify right side
    2,351.79x = 7,238,868.55
  5. Step 5: Solve for x
    x = 7,238,868.55/2,351.79
  6. Step 6: Final answer
    x = 3,078.03

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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.