Home / 3,958.78-5,462.36-2,386.98

Finding the Fourth Proportional to 3,958.78, 5,462.36 and 2,386.98

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Solution

The fourth proportional to 3,958.78, 5,462.36 and 2,386.98 is: 3,293.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.78 : 5,462.36 = 2,386.98 : x
  2. Step 2: Convert to fraction form
    3,958.78/5,462.36 = 2,386.98/x
  3. Step 3: Cross multiply
    3,958.78x = 5,462.36 × 2,386.98
  4. Step 4: Simplify right side
    3,958.78x = 13,038,544.07
  5. Step 5: Solve for x
    x = 13,038,544.07/3,958.78
  6. Step 6: Final answer
    x = 3,293.58

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1.5x scale

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.