Home / 2,809.72-4,206.36-1,973.89

Finding the Fourth Proportional to 2,809.72, 4,206.36 and 1,973.89

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Solution

The fourth proportional to 2,809.72, 4,206.36 and 1,973.89 is: 2,955.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.72 : 4,206.36 = 1,973.89 : x
  2. Step 2: Convert to fraction form
    2,809.72/4,206.36 = 1,973.89/x
  3. Step 3: Cross multiply
    2,809.72x = 4,206.36 × 1,973.89
  4. Step 4: Simplify right side
    2,809.72x = 8,302,891.94
  5. Step 5: Solve for x
    x = 8,302,891.94/2,809.72
  6. Step 6: Final answer
    x = 2,955.06

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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.