Home / 1,579.44-2,178.48-1,055.36

Finding the Fourth Proportional to 1,579.44, 2,178.48 and 1,055.36

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Solution

The fourth proportional to 1,579.44, 2,178.48 and 1,055.36 is: 1,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.44 : 2,178.48 = 1,055.36 : x
  2. Step 2: Convert to fraction form
    1,579.44/2,178.48 = 1,055.36/x
  3. Step 3: Cross multiply
    1,579.44x = 2,178.48 × 1,055.36
  4. Step 4: Simplify right side
    1,579.44x = 2,299,080.65
  5. Step 5: Solve for x
    x = 2,299,080.65/1,579.44
  6. Step 6: Final answer
    x = 1,455.63

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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.