Home / 4,779.15-7,171.43-1,857.08

Finding the Fourth Proportional to 4,779.15, 7,171.43 and 1,857.08

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Solution

The fourth proportional to 4,779.15, 7,171.43 and 1,857.08 is: 2,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.15 : 7,171.43 = 1,857.08 : x
  2. Step 2: Convert to fraction form
    4,779.15/7,171.43 = 1,857.08/x
  3. Step 3: Cross multiply
    4,779.15x = 7,171.43 × 1,857.08
  4. Step 4: Simplify right side
    4,779.15x = 13,317,874.08
  5. Step 5: Solve for x
    x = 13,317,874.08/4,779.15
  6. Step 6: Final answer
    x = 2,786.66

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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.