Home / 2,390.70-3,297.84-1,605.26

Finding the Fourth Proportional to 2,390.70, 3,297.84 and 1,605.26

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Solution

The fourth proportional to 2,390.70, 3,297.84 and 1,605.26 is: 2,214.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.70 : 3,297.84 = 1,605.26 : x
  2. Step 2: Convert to fraction form
    2,390.70/3,297.84 = 1,605.26/x
  3. Step 3: Cross multiply
    2,390.70x = 3,297.84 × 1,605.26
  4. Step 4: Simplify right side
    2,390.70x = 5,293,890.64
  5. Step 5: Solve for x
    x = 5,293,890.64/2,390.70
  6. Step 6: Final answer
    x = 2,214.37

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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.