Home / 3,940,938.51-5,438,555.51-2,308,955.37

Finding the Fourth Proportional to 3,940,938.51, 5,438,555.51 and 2,308,955.37

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Solution

The fourth proportional to 3,940,938.51, 5,438,555.51 and 2,308,955.37 is: 3,186,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,938.51 : 5,438,555.51 = 2,308,955.37 : x
  2. Step 2: Convert to fraction form
    3,940,938.51/5,438,555.51 = 2,308,955.37/x
  3. Step 3: Cross multiply
    3,940,938.51x = 5,438,555.51 × 2,308,955.37
  4. Step 4: Simplify right side
    3,940,938.51x = 12,557,381,938,312.81
  5. Step 5: Solve for x
    x = 12,557,381,938,312.81/3,940,938.51
  6. Step 6: Final answer
    x = 3,186,393.78

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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.