Home / 2,103.12-2,899.26-1,471.68

Finding the Fourth Proportional to 2,103.12, 2,899.26 and 1,471.68

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Solution

The fourth proportional to 2,103.12, 2,899.26 and 1,471.68 is: 2,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.12 : 2,899.26 = 1,471.68 : x
  2. Step 2: Convert to fraction form
    2,103.12/2,899.26 = 1,471.68/x
  3. Step 3: Cross multiply
    2,103.12x = 2,899.26 × 1,471.68
  4. Step 4: Simplify right side
    2,103.12x = 4,266,782.96
  5. Step 5: Solve for x
    x = 4,266,782.96/2,103.12
  6. Step 6: Final answer
    x = 2,028.79

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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.