Home / 2,406.12-3,315.14-1,618.80

Finding the Fourth Proportional to 2,406.12, 3,315.14 and 1,618.80

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Solution

The fourth proportional to 2,406.12, 3,315.14 and 1,618.80 is: 2,230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.12 : 3,315.14 = 1,618.80 : x
  2. Step 2: Convert to fraction form
    2,406.12/3,315.14 = 1,618.80/x
  3. Step 3: Cross multiply
    2,406.12x = 3,315.14 × 1,618.80
  4. Step 4: Simplify right side
    2,406.12x = 5,366,548.63
  5. Step 5: Solve for x
    x = 5,366,548.63/2,406.12
  6. Step 6: Final answer
    x = 2,230.37

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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.