Home / 2,399.32-3,314.58-1,900.36

Finding the Fourth Proportional to 2,399.32, 3,314.58 and 1,900.36

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Solution

The fourth proportional to 2,399.32, 3,314.58 and 1,900.36 is: 2,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.32 : 3,314.58 = 1,900.36 : x
  2. Step 2: Convert to fraction form
    2,399.32/3,314.58 = 1,900.36/x
  3. Step 3: Cross multiply
    2,399.32x = 3,314.58 × 1,900.36
  4. Step 4: Simplify right side
    2,399.32x = 6,298,895.25
  5. Step 5: Solve for x
    x = 6,298,895.25/2,399.32
  6. Step 6: Final answer
    x = 2,625.28

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1.5x scale

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.