Home / 3,640,725.87-5,024,322.39-1,986,963.54

Finding the Fourth Proportional to 3,640,725.87, 5,024,322.39 and 1,986,963.54

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Solution

The fourth proportional to 3,640,725.87, 5,024,322.39 and 1,986,963.54 is: 2,742,075.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640,725.87 : 5,024,322.39 = 1,986,963.54 : x
  2. Step 2: Convert to fraction form
    3,640,725.87/5,024,322.39 = 1,986,963.54/x
  3. Step 3: Cross multiply
    3,640,725.87x = 5,024,322.39 × 1,986,963.54
  4. Step 4: Simplify right side
    3,640,725.87x = 9,983,145,402,135.66
  5. Step 5: Solve for x
    x = 9,983,145,402,135.66/3,640,725.87
  6. Step 6: Final answer
    x = 2,742,075.55

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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.