Home / 2,905.34-4,009.40-1,579.06

Finding the Fourth Proportional to 2,905.34, 4,009.40 and 1,579.06

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Solution

The fourth proportional to 2,905.34, 4,009.40 and 1,579.06 is: 2,179.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.34 : 4,009.40 = 1,579.06 : x
  2. Step 2: Convert to fraction form
    2,905.34/4,009.40 = 1,579.06/x
  3. Step 3: Cross multiply
    2,905.34x = 4,009.40 × 1,579.06
  4. Step 4: Simplify right side
    2,905.34x = 6,331,083.16
  5. Step 5: Solve for x
    x = 6,331,083.16/2,905.34
  6. Step 6: Final answer
    x = 2,179.12

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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.