Home / 2,806.44-4,210.53-1,986.31

Finding the Fourth Proportional to 2,806.44, 4,210.53 and 1,986.31

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Solution

The fourth proportional to 2,806.44, 4,210.53 and 1,986.31 is: 2,980.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.44 : 4,210.53 = 1,986.31 : x
  2. Step 2: Convert to fraction form
    2,806.44/4,210.53 = 1,986.31/x
  3. Step 3: Cross multiply
    2,806.44x = 4,210.53 × 1,986.31
  4. Step 4: Simplify right side
    2,806.44x = 8,363,417.84
  5. Step 5: Solve for x
    x = 8,363,417.84/2,806.44
  6. Step 6: Final answer
    x = 2,980.08

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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.