Home / 3,085.99-4,260.63-1,907.74

Finding the Fourth Proportional to 3,085.99, 4,260.63 and 1,907.74

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Solution

The fourth proportional to 3,085.99, 4,260.63 and 1,907.74 is: 2,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.99 : 4,260.63 = 1,907.74 : x
  2. Step 2: Convert to fraction form
    3,085.99/4,260.63 = 1,907.74/x
  3. Step 3: Cross multiply
    3,085.99x = 4,260.63 × 1,907.74
  4. Step 4: Simplify right side
    3,085.99x = 8,128,174.28
  5. Step 5: Solve for x
    x = 8,128,174.28/3,085.99
  6. Step 6: Final answer
    x = 2,633.90

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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.