Home / 5,174.47-7,759.81-1,886.59

Finding the Fourth Proportional to 5,174.47, 7,759.81 and 1,886.59

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Solution

The fourth proportional to 5,174.47, 7,759.81 and 1,886.59 is: 2,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.47 : 7,759.81 = 1,886.59 : x
  2. Step 2: Convert to fraction form
    5,174.47/7,759.81 = 1,886.59/x
  3. Step 3: Cross multiply
    5,174.47x = 7,759.81 × 1,886.59
  4. Step 4: Simplify right side
    5,174.47x = 14,639,579.95
  5. Step 5: Solve for x
    x = 14,639,579.95/5,174.47
  6. Step 6: Final answer
    x = 2,829.19

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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.