Home / 1,818.48-2,509.36-1,179.28

Finding the Fourth Proportional to 1,818.48, 2,509.36 and 1,179.28

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Solution

The fourth proportional to 1,818.48, 2,509.36 and 1,179.28 is: 1,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.48 : 2,509.36 = 1,179.28 : x
  2. Step 2: Convert to fraction form
    1,818.48/2,509.36 = 1,179.28/x
  3. Step 3: Cross multiply
    1,818.48x = 2,509.36 × 1,179.28
  4. Step 4: Simplify right side
    1,818.48x = 2,959,238.06
  5. Step 5: Solve for x
    x = 2,959,238.06/1,818.48
  6. Step 6: Final answer
    x = 1,627.31

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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.