Home / 5,172.34-7,759.73-1,709.59

Finding the Fourth Proportional to 5,172.34, 7,759.73 and 1,709.59

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Solution

The fourth proportional to 5,172.34, 7,759.73 and 1,709.59 is: 2,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.34 : 7,759.73 = 1,709.59 : x
  2. Step 2: Convert to fraction form
    5,172.34/7,759.73 = 1,709.59/x
  3. Step 3: Cross multiply
    5,172.34x = 7,759.73 × 1,709.59
  4. Step 4: Simplify right side
    5,172.34x = 13,265,956.81
  5. Step 5: Solve for x
    x = 13,265,956.81/5,172.34
  6. Step 6: Final answer
    x = 2,564.79

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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.