Home / 3,113.16-4,291.80-2,227.36

Finding the Fourth Proportional to 3,113.16, 4,291.80 and 2,227.36

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Solution

The fourth proportional to 3,113.16, 4,291.80 and 2,227.36 is: 3,070.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.16 : 4,291.80 = 2,227.36 : x
  2. Step 2: Convert to fraction form
    3,113.16/4,291.80 = 2,227.36/x
  3. Step 3: Cross multiply
    3,113.16x = 4,291.80 × 2,227.36
  4. Step 4: Simplify right side
    3,113.16x = 9,559,383.65
  5. Step 5: Solve for x
    x = 9,559,383.65/3,113.16
  6. Step 6: Final answer
    x = 3,070.64

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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.