Home / 2,390.20-3,297.56-1,762.22

Finding the Fourth Proportional to 2,390.20, 3,297.56 and 1,762.22

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Solution

The fourth proportional to 2,390.20, 3,297.56 and 1,762.22 is: 2,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.20 : 3,297.56 = 1,762.22 : x
  2. Step 2: Convert to fraction form
    2,390.20/3,297.56 = 1,762.22/x
  3. Step 3: Cross multiply
    2,390.20x = 3,297.56 × 1,762.22
  4. Step 4: Simplify right side
    2,390.20x = 5,811,022.74
  5. Step 5: Solve for x
    x = 5,811,022.74/2,390.20
  6. Step 6: Final answer
    x = 2,431.18

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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.