Home / 2,090.96-3,131.65-1,051.25

Finding the Fourth Proportional to 2,090.96, 3,131.65 and 1,051.25

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Solution

The fourth proportional to 2,090.96, 3,131.65 and 1,051.25 is: 1,574.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.96 : 3,131.65 = 1,051.25 : x
  2. Step 2: Convert to fraction form
    2,090.96/3,131.65 = 1,051.25/x
  3. Step 3: Cross multiply
    2,090.96x = 3,131.65 × 1,051.25
  4. Step 4: Simplify right side
    2,090.96x = 3,292,153.23
  5. Step 5: Solve for x
    x = 3,292,153.23/2,090.96
  6. Step 6: Final answer
    x = 1,574.47

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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.