Home / 1,922.79-2,653.83-1,126.20

Finding the Fourth Proportional to 1,922.79, 2,653.83 and 1,126.20

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Solution

The fourth proportional to 1,922.79, 2,653.83 and 1,126.20 is: 1,554.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.79 : 2,653.83 = 1,126.20 : x
  2. Step 2: Convert to fraction form
    1,922.79/2,653.83 = 1,126.20/x
  3. Step 3: Cross multiply
    1,922.79x = 2,653.83 × 1,126.20
  4. Step 4: Simplify right side
    1,922.79x = 2,988,743.35
  5. Step 5: Solve for x
    x = 2,988,743.35/1,922.79
  6. Step 6: Final answer
    x = 1,554.38

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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.