Home / 2,006.21-2,768.53-1,122.10

Finding the Fourth Proportional to 2,006.21, 2,768.53 and 1,122.10

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Solution

The fourth proportional to 2,006.21, 2,768.53 and 1,122.10 is: 1,548.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.21 : 2,768.53 = 1,122.10 : x
  2. Step 2: Convert to fraction form
    2,006.21/2,768.53 = 1,122.10/x
  3. Step 3: Cross multiply
    2,006.21x = 2,768.53 × 1,122.10
  4. Step 4: Simplify right side
    2,006.21x = 3,106,567.51
  5. Step 5: Solve for x
    x = 3,106,567.51/2,006.21
  6. Step 6: Final answer
    x = 1,548.48

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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.