Home / 4,065.12-5,601.60-2,806.56

Finding the Fourth Proportional to 4,065.12, 5,601.60 and 2,806.56

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Solution

The fourth proportional to 4,065.12, 5,601.60 and 2,806.56 is: 3,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,065.12 : 5,601.60 = 2,806.56 : x
  2. Step 2: Convert to fraction form
    4,065.12/5,601.60 = 2,806.56/x
  3. Step 3: Cross multiply
    4,065.12x = 5,601.60 × 2,806.56
  4. Step 4: Simplify right side
    4,065.12x = 15,721,226.50
  5. Step 5: Solve for x
    x = 15,721,226.50/4,065.12
  6. Step 6: Final answer
    x = 3,867.35

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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.