Home / 5,139.53-7,709.25-1,629.53

Finding the Fourth Proportional to 5,139.53, 7,709.25 and 1,629.53

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Solution

The fourth proportional to 5,139.53, 7,709.25 and 1,629.53 is: 2,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.53 : 7,709.25 = 1,629.53 : x
  2. Step 2: Convert to fraction form
    5,139.53/7,709.25 = 1,629.53/x
  3. Step 3: Cross multiply
    5,139.53x = 7,709.25 × 1,629.53
  4. Step 4: Simplify right side
    5,139.53x = 12,562,454.15
  5. Step 5: Solve for x
    x = 12,562,454.15/5,139.53
  6. Step 6: Final answer
    x = 2,444.28

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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.