Home / 3,918.24-5,406.56-2,346

Finding the Fourth Proportional to 3,918.24, 5,406.56 and 2,346

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Solution

The fourth proportional to 3,918.24, 5,406.56 and 2,346 is: 3,237.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.24 : 5,406.56 = 2,346 : x
  2. Step 2: Convert to fraction form
    3,918.24/5,406.56 = 2,346/x
  3. Step 3: Cross multiply
    3,918.24x = 5,406.56 × 2,346
  4. Step 4: Simplify right side
    3,918.24x = 12,683,789.76
  5. Step 5: Solve for x
    x = 12,683,789.76/3,918.24
  6. Step 6: Final answer
    x = 3,237.11

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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.