Home / 3,081.15-4,615.92-1,907.46

Finding the Fourth Proportional to 3,081.15, 4,615.92 and 1,907.46

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Solution

The fourth proportional to 3,081.15, 4,615.92 and 1,907.46 is: 2,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.15 : 4,615.92 = 1,907.46 : x
  2. Step 2: Convert to fraction form
    3,081.15/4,615.92 = 1,907.46/x
  3. Step 3: Cross multiply
    3,081.15x = 4,615.92 × 1,907.46
  4. Step 4: Simplify right side
    3,081.15x = 8,804,682.76
  5. Step 5: Solve for x
    x = 8,804,682.76/3,081.15
  6. Step 6: Final answer
    x = 2,857.60

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1.5x scale

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.