Home / 2,119.55-2,924.79-1,235.43

Finding the Fourth Proportional to 2,119.55, 2,924.79 and 1,235.43

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Solution

The fourth proportional to 2,119.55, 2,924.79 and 1,235.43 is: 1,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.55 : 2,924.79 = 1,235.43 : x
  2. Step 2: Convert to fraction form
    2,119.55/2,924.79 = 1,235.43/x
  3. Step 3: Cross multiply
    2,119.55x = 2,924.79 × 1,235.43
  4. Step 4: Simplify right side
    2,119.55x = 3,613,373.31
  5. Step 5: Solve for x
    x = 3,613,373.31/2,119.55
  6. Step 6: Final answer
    x = 1,704.79

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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.