Home / 5,173.19-7,759.69-1,277.60

Finding the Fourth Proportional to 5,173.19, 7,759.69 and 1,277.60

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Solution

The fourth proportional to 5,173.19, 7,759.69 and 1,277.60 is: 1,916.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.19 : 7,759.69 = 1,277.60 : x
  2. Step 2: Convert to fraction form
    5,173.19/7,759.69 = 1,277.60/x
  3. Step 3: Cross multiply
    5,173.19x = 7,759.69 × 1,277.60
  4. Step 4: Simplify right side
    5,173.19x = 9,913,779.94
  5. Step 5: Solve for x
    x = 9,913,779.94/5,173.19
  6. Step 6: Final answer
    x = 1,916.38

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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.