Home / 2,905.79-4,010.06-1,579.58

Finding the Fourth Proportional to 2,905.79, 4,010.06 and 1,579.58

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Solution

The fourth proportional to 2,905.79, 4,010.06 and 1,579.58 is: 2,179.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.79 : 4,010.06 = 1,579.58 : x
  2. Step 2: Convert to fraction form
    2,905.79/4,010.06 = 1,579.58/x
  3. Step 3: Cross multiply
    2,905.79x = 4,010.06 × 1,579.58
  4. Step 4: Simplify right side
    2,905.79x = 6,334,182.63
  5. Step 5: Solve for x
    x = 6,334,182.63/2,905.79
  6. Step 6: Final answer
    x = 2,179.85

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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.