Home / 2,391.45-3,298.43-1,396.67

Finding the Fourth Proportional to 2,391.45, 3,298.43 and 1,396.67

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Solution

The fourth proportional to 2,391.45, 3,298.43 and 1,396.67 is: 1,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.45 : 3,298.43 = 1,396.67 : x
  2. Step 2: Convert to fraction form
    2,391.45/3,298.43 = 1,396.67/x
  3. Step 3: Cross multiply
    2,391.45x = 3,298.43 × 1,396.67
  4. Step 4: Simplify right side
    2,391.45x = 4,606,818.23
  5. Step 5: Solve for x
    x = 4,606,818.23/2,391.45
  6. Step 6: Final answer
    x = 1,926.37

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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.