Home / 3,806.95-5,254.59-2,315.89

Finding the Fourth Proportional to 3,806.95, 5,254.59 and 2,315.89

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Solution

The fourth proportional to 3,806.95, 5,254.59 and 2,315.89 is: 3,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.95 : 5,254.59 = 2,315.89 : x
  2. Step 2: Convert to fraction form
    3,806.95/5,254.59 = 2,315.89/x
  3. Step 3: Cross multiply
    3,806.95x = 5,254.59 × 2,315.89
  4. Step 4: Simplify right side
    3,806.95x = 12,169,052.44
  5. Step 5: Solve for x
    x = 12,169,052.44/3,806.95
  6. Step 6: Final answer
    x = 3,196.54

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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.