Home / 1,921.93-2,653.56-1,250.03

Finding the Fourth Proportional to 1,921.93, 2,653.56 and 1,250.03

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Solution

The fourth proportional to 1,921.93, 2,653.56 and 1,250.03 is: 1,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.93 : 2,653.56 = 1,250.03 : x
  2. Step 2: Convert to fraction form
    1,921.93/2,653.56 = 1,250.03/x
  3. Step 3: Cross multiply
    1,921.93x = 2,653.56 × 1,250.03
  4. Step 4: Simplify right side
    1,921.93x = 3,317,036.24
  5. Step 5: Solve for x
    x = 3,317,036.24/1,921.93
  6. Step 6: Final answer
    x = 1,725.89

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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.