Home / 2,392.45-3,299.81-1,397.67

Finding the Fourth Proportional to 2,392.45, 3,299.81 and 1,397.67

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Solution

The fourth proportional to 2,392.45, 3,299.81 and 1,397.67 is: 1,927.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.45 : 3,299.81 = 1,397.67 : x
  2. Step 2: Convert to fraction form
    2,392.45/3,299.81 = 1,397.67/x
  3. Step 3: Cross multiply
    2,392.45x = 3,299.81 × 1,397.67
  4. Step 4: Simplify right side
    2,392.45x = 4,612,045.44
  5. Step 5: Solve for x
    x = 4,612,045.44/2,392.45
  6. Step 6: Final answer
    x = 1,927.75

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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.