Home / 2,806.85-4,210.58-2,291.49

Finding the Fourth Proportional to 2,806.85, 4,210.58 and 2,291.49

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Solution

The fourth proportional to 2,806.85, 4,210.58 and 2,291.49 is: 3,437.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.85 : 4,210.58 = 2,291.49 : x
  2. Step 2: Convert to fraction form
    2,806.85/4,210.58 = 2,291.49/x
  3. Step 3: Cross multiply
    2,806.85x = 4,210.58 × 2,291.49
  4. Step 4: Simplify right side
    2,806.85x = 9,648,507.69
  5. Step 5: Solve for x
    x = 9,648,507.69/2,806.85
  6. Step 6: Final answer
    x = 3,437.48

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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.