Home / 4,779.93-7,169.72-1,317.09

Finding the Fourth Proportional to 4,779.93, 7,169.72 and 1,317.09

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Solution

The fourth proportional to 4,779.93, 7,169.72 and 1,317.09 is: 1,975.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.93 : 7,169.72 = 1,317.09 : x
  2. Step 2: Convert to fraction form
    4,779.93/7,169.72 = 1,317.09/x
  3. Step 3: Cross multiply
    4,779.93x = 7,169.72 × 1,317.09
  4. Step 4: Simplify right side
    4,779.93x = 9,443,159.93
  5. Step 5: Solve for x
    x = 9,443,159.93/4,779.93
  6. Step 6: Final answer
    x = 1,975.59

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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.