Home / 2,390.82-3,299.37-1,342.89

Finding the Fourth Proportional to 2,390.82, 3,299.37 and 1,342.89

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Solution

The fourth proportional to 2,390.82, 3,299.37 and 1,342.89 is: 1,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.82 : 3,299.37 = 1,342.89 : x
  2. Step 2: Convert to fraction form
    2,390.82/3,299.37 = 1,342.89/x
  3. Step 3: Cross multiply
    2,390.82x = 3,299.37 × 1,342.89
  4. Step 4: Simplify right side
    2,390.82x = 4,430,690.98
  5. Step 5: Solve for x
    x = 4,430,690.98/2,390.82
  6. Step 6: Final answer
    x = 1,853.21

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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.