Home / 2,779.15-3,835.74-1,785.67

Finding the Fourth Proportional to 2,779.15, 3,835.74 and 1,785.67

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Solution

The fourth proportional to 2,779.15, 3,835.74 and 1,785.67 is: 2,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.15 : 3,835.74 = 1,785.67 : x
  2. Step 2: Convert to fraction form
    2,779.15/3,835.74 = 1,785.67/x
  3. Step 3: Cross multiply
    2,779.15x = 3,835.74 × 1,785.67
  4. Step 4: Simplify right side
    2,779.15x = 6,849,365.85
  5. Step 5: Solve for x
    x = 6,849,365.85/2,779.15
  6. Step 6: Final answer
    x = 2,464.55

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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.