Home / 7,709.36-11,565.75-2,779.02

Finding the Fourth Proportional to 7,709.36, 11,565.75 and 2,779.02

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Solution

The fourth proportional to 7,709.36, 11,565.75 and 2,779.02 is: 4,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.36 : 11,565.75 = 2,779.02 : x
  2. Step 2: Convert to fraction form
    7,709.36/11,565.75 = 2,779.02/x
  3. Step 3: Cross multiply
    7,709.36x = 11,565.75 × 2,779.02
  4. Step 4: Simplify right side
    7,709.36x = 32,141,450.57
  5. Step 5: Solve for x
    x = 32,141,450.57/7,709.36
  6. Step 6: Final answer
    x = 4,169.15

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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.