Home / 3,907.28-5,857.31-1,440.23

Finding the Fourth Proportional to 3,907.28, 5,857.31 and 1,440.23

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Solution

The fourth proportional to 3,907.28, 5,857.31 and 1,440.23 is: 2,159.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.28 : 5,857.31 = 1,440.23 : x
  2. Step 2: Convert to fraction form
    3,907.28/5,857.31 = 1,440.23/x
  3. Step 3: Cross multiply
    3,907.28x = 5,857.31 × 1,440.23
  4. Step 4: Simplify right side
    3,907.28x = 8,435,847.90
  5. Step 5: Solve for x
    x = 8,435,847.90/3,907.28
  6. Step 6: Final answer
    x = 2,159.01

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1.5x scale

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.