Home / 2,351.49-3,245.14-1,289.34

Finding the Fourth Proportional to 2,351.49, 3,245.14 and 1,289.34

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Solution

The fourth proportional to 2,351.49, 3,245.14 and 1,289.34 is: 1,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.49 : 3,245.14 = 1,289.34 : x
  2. Step 2: Convert to fraction form
    2,351.49/3,245.14 = 1,289.34/x
  3. Step 3: Cross multiply
    2,351.49x = 3,245.14 × 1,289.34
  4. Step 4: Simplify right side
    2,351.49x = 4,184,095.92
  5. Step 5: Solve for x
    x = 4,184,095.92/2,351.49
  6. Step 6: Final answer
    x = 1,779.34

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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.