Home / 2,715.96-3,749.31-2,223.90

Finding the Fourth Proportional to 2,715.96, 3,749.31 and 2,223.90

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Solution

The fourth proportional to 2,715.96, 3,749.31 and 2,223.90 is: 3,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.96 : 3,749.31 = 2,223.90 : x
  2. Step 2: Convert to fraction form
    2,715.96/3,749.31 = 2,223.90/x
  3. Step 3: Cross multiply
    2,715.96x = 3,749.31 × 2,223.90
  4. Step 4: Simplify right side
    2,715.96x = 8,338,090.51
  5. Step 5: Solve for x
    x = 8,338,090.51/2,715.96
  6. Step 6: Final answer
    x = 3,070.03

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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.