Home / 2,290.47-3,161.01-1,295.85

Finding the Fourth Proportional to 2,290.47, 3,161.01 and 1,295.85

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Solution

The fourth proportional to 2,290.47, 3,161.01 and 1,295.85 is: 1,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.47 : 3,161.01 = 1,295.85 : x
  2. Step 2: Convert to fraction form
    2,290.47/3,161.01 = 1,295.85/x
  3. Step 3: Cross multiply
    2,290.47x = 3,161.01 × 1,295.85
  4. Step 4: Simplify right side
    2,290.47x = 4,096,194.81
  5. Step 5: Solve for x
    x = 4,096,194.81/2,290.47
  6. Step 6: Final answer
    x = 1,788.36

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1.5x scale

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.