Home / 4,779.09-7,169.94-1,447.20

Finding the Fourth Proportional to 4,779.09, 7,169.94 and 1,447.20

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Solution

The fourth proportional to 4,779.09, 7,169.94 and 1,447.20 is: 2,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.09 : 7,169.94 = 1,447.20 : x
  2. Step 2: Convert to fraction form
    4,779.09/7,169.94 = 1,447.20/x
  3. Step 3: Cross multiply
    4,779.09x = 7,169.94 × 1,447.20
  4. Step 4: Simplify right side
    4,779.09x = 10,376,337.17
  5. Step 5: Solve for x
    x = 10,376,337.17/4,779.09
  6. Step 6: Final answer
    x = 2,171.20

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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.