Home / 3,970.14-5,480.63-2,377.54

Finding the Fourth Proportional to 3,970.14, 5,480.63 and 2,377.54

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Solution

The fourth proportional to 3,970.14, 5,480.63 and 2,377.54 is: 3,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.14 : 5,480.63 = 2,377.54 : x
  2. Step 2: Convert to fraction form
    3,970.14/5,480.63 = 2,377.54/x
  3. Step 3: Cross multiply
    3,970.14x = 5,480.63 × 2,377.54
  4. Step 4: Simplify right side
    3,970.14x = 13,030,417.05
  5. Step 5: Solve for x
    x = 13,030,417.05/3,970.14
  6. Step 6: Final answer
    x = 3,282.11

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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.