Home / 2,291.99-3,162.93-1,297.34

Finding the Fourth Proportional to 2,291.99, 3,162.93 and 1,297.34

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Solution

The fourth proportional to 2,291.99, 3,162.93 and 1,297.34 is: 1,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.99 : 3,162.93 = 1,297.34 : x
  2. Step 2: Convert to fraction form
    2,291.99/3,162.93 = 1,297.34/x
  3. Step 3: Cross multiply
    2,291.99x = 3,162.93 × 1,297.34
  4. Step 4: Simplify right side
    2,291.99x = 4,103,379.79
  5. Step 5: Solve for x
    x = 4,103,379.79/2,291.99
  6. Step 6: Final answer
    x = 1,790.32

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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.