Home / 3,106.76-4,287.33-1,927.13

Finding the Fourth Proportional to 3,106.76, 4,287.33 and 1,927.13

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Solution

The fourth proportional to 3,106.76, 4,287.33 and 1,927.13 is: 2,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.76 : 4,287.33 = 1,927.13 : x
  2. Step 2: Convert to fraction form
    3,106.76/4,287.33 = 1,927.13/x
  3. Step 3: Cross multiply
    3,106.76x = 4,287.33 × 1,927.13
  4. Step 4: Simplify right side
    3,106.76x = 8,262,220.83
  5. Step 5: Solve for x
    x = 8,262,220.83/3,106.76
  6. Step 6: Final answer
    x = 2,659.44

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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.