Home / 2,290.50-3,161.48-1,407.04

Finding the Fourth Proportional to 2,290.50, 3,161.48 and 1,407.04

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Solution

The fourth proportional to 2,290.50, 3,161.48 and 1,407.04 is: 1,942.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.50 : 3,161.48 = 1,407.04 : x
  2. Step 2: Convert to fraction form
    2,290.50/3,161.48 = 1,407.04/x
  3. Step 3: Cross multiply
    2,290.50x = 3,161.48 × 1,407.04
  4. Step 4: Simplify right side
    2,290.50x = 4,448,313.88
  5. Step 5: Solve for x
    x = 4,448,313.88/2,290.50
  6. Step 6: Final answer
    x = 1,942.07

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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.