Home / 3,368.09-4,648.43-2,129.69

Finding the Fourth Proportional to 3,368.09, 4,648.43 and 2,129.69

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Solution

The fourth proportional to 3,368.09, 4,648.43 and 2,129.69 is: 2,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.09 : 4,648.43 = 2,129.69 : x
  2. Step 2: Convert to fraction form
    3,368.09/4,648.43 = 2,129.69/x
  3. Step 3: Cross multiply
    3,368.09x = 4,648.43 × 2,129.69
  4. Step 4: Simplify right side
    3,368.09x = 9,899,704.24
  5. Step 5: Solve for x
    x = 9,899,704.24/3,368.09
  6. Step 6: Final answer
    x = 2,939.26

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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.