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Finding the Fourth Proportional to 2,133.65, 2,942.07 and 1,749.22

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Solution

The fourth proportional to 2,133.65, 2,942.07 and 1,749.22 is: 2,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.65 : 2,942.07 = 1,749.22 : x
  2. Step 2: Convert to fraction form
    2,133.65/2,942.07 = 1,749.22/x
  3. Step 3: Cross multiply
    2,133.65x = 2,942.07 × 1,749.22
  4. Step 4: Simplify right side
    2,133.65x = 5,146,320.82
  5. Step 5: Solve for x
    x = 5,146,320.82/2,133.65
  6. Step 6: Final answer
    x = 2,411.98

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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.