Home / 3,386.56-5,080.30-1,538.14

Finding the Fourth Proportional to 3,386.56, 5,080.30 and 1,538.14

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Solution

The fourth proportional to 3,386.56, 5,080.30 and 1,538.14 is: 2,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.56 : 5,080.30 = 1,538.14 : x
  2. Step 2: Convert to fraction form
    3,386.56/5,080.30 = 1,538.14/x
  3. Step 3: Cross multiply
    3,386.56x = 5,080.30 × 1,538.14
  4. Step 4: Simplify right side
    3,386.56x = 7,814,212.64
  5. Step 5: Solve for x
    x = 7,814,212.64/3,386.56
  6. Step 6: Final answer
    x = 2,307.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.