Home / 2,774.31-3,828.60-1,579.47

Finding the Fourth Proportional to 2,774.31, 3,828.60 and 1,579.47

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Solution

The fourth proportional to 2,774.31, 3,828.60 and 1,579.47 is: 2,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.31 : 3,828.60 = 1,579.47 : x
  2. Step 2: Convert to fraction form
    2,774.31/3,828.60 = 1,579.47/x
  3. Step 3: Cross multiply
    2,774.31x = 3,828.60 × 1,579.47
  4. Step 4: Simplify right side
    2,774.31x = 6,047,158.84
  5. Step 5: Solve for x
    x = 6,047,158.84/2,774.31
  6. Step 6: Final answer
    x = 2,179.70

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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.