Home / 7,157.06-9,877.38-4,173.19

Finding the Fourth Proportional to 7,157.06, 9,877.38 and 4,173.19

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Solution

The fourth proportional to 7,157.06, 9,877.38 and 4,173.19 is: 5,759.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.06 : 9,877.38 = 4,173.19 : x
  2. Step 2: Convert to fraction form
    7,157.06/9,877.38 = 4,173.19/x
  3. Step 3: Cross multiply
    7,157.06x = 9,877.38 × 4,173.19
  4. Step 4: Simplify right side
    7,157.06x = 41,220,143.10
  5. Step 5: Solve for x
    x = 41,220,143.10/7,157.06
  6. Step 6: Final answer
    x = 5,759.37

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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.