Home / 1,991.04-2,973.36-1,699.20

Finding the Fourth Proportional to 1,991.04, 2,973.36 and 1,699.20

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Solution

The fourth proportional to 1,991.04, 2,973.36 and 1,699.20 is: 2,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991.04 : 2,973.36 = 1,699.20 : x
  2. Step 2: Convert to fraction form
    1,991.04/2,973.36 = 1,699.20/x
  3. Step 3: Cross multiply
    1,991.04x = 2,973.36 × 1,699.20
  4. Step 4: Simplify right side
    1,991.04x = 5,052,333.31
  5. Step 5: Solve for x
    x = 5,052,333.31/1,991.04
  6. Step 6: Final answer
    x = 2,537.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.