Home / 3,504.80-5,255.67-1,312.00

Finding the Fourth Proportional to 3,504.80, 5,255.67 and 1,312.00

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Solution

The fourth proportional to 3,504.80, 5,255.67 and 1,312.00 is: 1,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.80 : 5,255.67 = 1,312.00 : x
  2. Step 2: Convert to fraction form
    3,504.80/5,255.67 = 1,312.00/x
  3. Step 3: Cross multiply
    3,504.80x = 5,255.67 × 1,312.00
  4. Step 4: Simplify right side
    3,504.80x = 6,895,410.30
  5. Step 5: Solve for x
    x = 6,895,410.30/3,504.80
  6. Step 6: Final answer
    x = 1,967.42

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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.