Home / 2,186.69-3,018.02-1,242.54

Finding the Fourth Proportional to 2,186.69, 3,018.02 and 1,242.54

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Solution

The fourth proportional to 2,186.69, 3,018.02 and 1,242.54 is: 1,714.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.69 : 3,018.02 = 1,242.54 : x
  2. Step 2: Convert to fraction form
    2,186.69/3,018.02 = 1,242.54/x
  3. Step 3: Cross multiply
    2,186.69x = 3,018.02 × 1,242.54
  4. Step 4: Simplify right side
    2,186.69x = 3,750,004.36
  5. Step 5: Solve for x
    x = 3,750,004.36/2,186.69
  6. Step 6: Final answer
    x = 1,714.93

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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.