Home / 2,312.62-3,457.69-1,969.99

Finding the Fourth Proportional to 2,312.62, 3,457.69 and 1,969.99

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Solution

The fourth proportional to 2,312.62, 3,457.69 and 1,969.99 is: 2,945.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.62 : 3,457.69 = 1,969.99 : x
  2. Step 2: Convert to fraction form
    2,312.62/3,457.69 = 1,969.99/x
  3. Step 3: Cross multiply
    2,312.62x = 3,457.69 × 1,969.99
  4. Step 4: Simplify right side
    2,312.62x = 6,811,601.15
  5. Step 5: Solve for x
    x = 6,811,601.15/2,312.62
  6. Step 6: Final answer
    x = 2,945.41

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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.