Home / 3,135.03-4,326.80-1,808.47

Finding the Fourth Proportional to 3,135.03, 4,326.80 and 1,808.47

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Solution

The fourth proportional to 3,135.03, 4,326.80 and 1,808.47 is: 2,495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.03 : 4,326.80 = 1,808.47 : x
  2. Step 2: Convert to fraction form
    3,135.03/4,326.80 = 1,808.47/x
  3. Step 3: Cross multiply
    3,135.03x = 4,326.80 × 1,808.47
  4. Step 4: Simplify right side
    3,135.03x = 7,824,888.00
  5. Step 5: Solve for x
    x = 7,824,888.00/3,135.03
  6. Step 6: Final answer
    x = 2,495.95

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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.