Home / 3,907,313.54-5,866,338.84-1,989,513.19

Finding the Fourth Proportional to 3,907,313.54, 5,866,338.84 and 1,989,513.19

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Solution

The fourth proportional to 3,907,313.54, 5,866,338.84 and 1,989,513.19 is: 2,987,003.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907,313.54 : 5,866,338.84 = 1,989,513.19 : x
  2. Step 2: Convert to fraction form
    3,907,313.54/5,866,338.84 = 1,989,513.19/x
  3. Step 3: Cross multiply
    3,907,313.54x = 5,866,338.84 × 1,989,513.19
  4. Step 4: Simplify right side
    3,907,313.54x = 11,671,158,499,061.55
  5. Step 5: Solve for x
    x = 11,671,158,499,061.55/3,907,313.54
  6. Step 6: Final answer
    x = 2,987,003.32

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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.