Home / 2,133.20-2,942.61-1,365.23

Finding the Fourth Proportional to 2,133.20, 2,942.61 and 1,365.23

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Solution

The fourth proportional to 2,133.20, 2,942.61 and 1,365.23 is: 1,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.20 : 2,942.61 = 1,365.23 : x
  2. Step 2: Convert to fraction form
    2,133.20/2,942.61 = 1,365.23/x
  3. Step 3: Cross multiply
    2,133.20x = 2,942.61 × 1,365.23
  4. Step 4: Simplify right side
    2,133.20x = 4,017,324.74
  5. Step 5: Solve for x
    x = 4,017,324.74/2,133.20
  6. Step 6: Final answer
    x = 1,883.24

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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.