Home / 1,895.11-2,840.67-1,308.21

Finding the Fourth Proportional to 1,895.11, 2,840.67 and 1,308.21

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Solution

The fourth proportional to 1,895.11, 2,840.67 and 1,308.21 is: 1,960.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.11 : 2,840.67 = 1,308.21 : x
  2. Step 2: Convert to fraction form
    1,895.11/2,840.67 = 1,308.21/x
  3. Step 3: Cross multiply
    1,895.11x = 2,840.67 × 1,308.21
  4. Step 4: Simplify right side
    1,895.11x = 3,716,192.90
  5. Step 5: Solve for x
    x = 3,716,192.90/1,895.11
  6. Step 6: Final answer
    x = 1,960.94

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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.