Home / 2,021.14-2,789.29-1,347.78

Finding the Fourth Proportional to 2,021.14, 2,789.29 and 1,347.78

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Solution

The fourth proportional to 2,021.14, 2,789.29 and 1,347.78 is: 1,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.14 : 2,789.29 = 1,347.78 : x
  2. Step 2: Convert to fraction form
    2,021.14/2,789.29 = 1,347.78/x
  3. Step 3: Cross multiply
    2,021.14x = 2,789.29 × 1,347.78
  4. Step 4: Simplify right side
    2,021.14x = 3,759,349.28
  5. Step 5: Solve for x
    x = 3,759,349.28/2,021.14
  6. Step 6: Final answer
    x = 1,860.01

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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.