Home / 2,368.20-3,268.18-1,320.20

Finding the Fourth Proportional to 2,368.20, 3,268.18 and 1,320.20

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Solution

The fourth proportional to 2,368.20, 3,268.18 and 1,320.20 is: 1,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.20 : 3,268.18 = 1,320.20 : x
  2. Step 2: Convert to fraction form
    2,368.20/3,268.18 = 1,320.20/x
  3. Step 3: Cross multiply
    2,368.20x = 3,268.18 × 1,320.20
  4. Step 4: Simplify right side
    2,368.20x = 4,314,651.24
  5. Step 5: Solve for x
    x = 4,314,651.24/2,368.20
  6. Step 6: Final answer
    x = 1,821.91

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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.