Home / 2,806.07-4,210.05-1,764.85

Finding the Fourth Proportional to 2,806.07, 4,210.05 and 1,764.85

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Solution

The fourth proportional to 2,806.07, 4,210.05 and 1,764.85 is: 2,647.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.07 : 4,210.05 = 1,764.85 : x
  2. Step 2: Convert to fraction form
    2,806.07/4,210.05 = 1,764.85/x
  3. Step 3: Cross multiply
    2,806.07x = 4,210.05 × 1,764.85
  4. Step 4: Simplify right side
    2,806.07x = 7,430,085.69
  5. Step 5: Solve for x
    x = 7,430,085.69/2,806.07
  6. Step 6: Final answer
    x = 2,647.86

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1.5x scale

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.