Home / 4,839.19-6,686.75-3,779.64

Finding the Fourth Proportional to 4,839.19, 6,686.75 and 3,779.64

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Solution

The fourth proportional to 4,839.19, 6,686.75 and 3,779.64 is: 5,222.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.19 : 6,686.75 = 3,779.64 : x
  2. Step 2: Convert to fraction form
    4,839.19/6,686.75 = 3,779.64/x
  3. Step 3: Cross multiply
    4,839.19x = 6,686.75 × 3,779.64
  4. Step 4: Simplify right side
    4,839.19x = 25,273,498.41
  5. Step 5: Solve for x
    x = 25,273,498.41/4,839.19
  6. Step 6: Final answer
    x = 5,222.67

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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.