Home / 3,159.51-4,739.30-1,211.25

Finding the Fourth Proportional to 3,159.51, 4,739.30 and 1,211.25

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Solution

The fourth proportional to 3,159.51, 4,739.30 and 1,211.25 is: 1,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.51 : 4,739.30 = 1,211.25 : x
  2. Step 2: Convert to fraction form
    3,159.51/4,739.30 = 1,211.25/x
  3. Step 3: Cross multiply
    3,159.51x = 4,739.30 × 1,211.25
  4. Step 4: Simplify right side
    3,159.51x = 5,740,471.07
  5. Step 5: Solve for x
    x = 5,740,471.07/3,159.51
  6. Step 6: Final answer
    x = 1,816.89

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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.