Home / 5,173.92-7,139.47-3,020.54

Finding the Fourth Proportional to 5,173.92, 7,139.47 and 3,020.54

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Solution

The fourth proportional to 5,173.92, 7,139.47 and 3,020.54 is: 4,168.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.92 : 7,139.47 = 3,020.54 : x
  2. Step 2: Convert to fraction form
    5,173.92/7,139.47 = 3,020.54/x
  3. Step 3: Cross multiply
    5,173.92x = 7,139.47 × 3,020.54
  4. Step 4: Simplify right side
    5,173.92x = 21,565,054.71
  5. Step 5: Solve for x
    x = 21,565,054.71/5,173.92
  6. Step 6: Final answer
    x = 4,168.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.