Home / 2,186.56-3,018-1,478.08

Finding the Fourth Proportional to 2,186.56, 3,018 and 1,478.08

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Solution

The fourth proportional to 2,186.56, 3,018 and 1,478.08 is: 2,040.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.56 : 3,018 = 1,478.08 : x
  2. Step 2: Convert to fraction form
    2,186.56/3,018 = 1,478.08/x
  3. Step 3: Cross multiply
    2,186.56x = 3,018 × 1,478.08
  4. Step 4: Simplify right side
    2,186.56x = 4,460,845.44
  5. Step 5: Solve for x
    x = 4,460,845.44/2,186.56
  6. Step 6: Final answer
    x = 2,040.12

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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.