Home / 5,189.15-7,160.53-2,950.90

Finding the Fourth Proportional to 5,189.15, 7,160.53 and 2,950.90

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Solution

The fourth proportional to 5,189.15, 7,160.53 and 2,950.90 is: 4,071.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.15 : 7,160.53 = 2,950.90 : x
  2. Step 2: Convert to fraction form
    5,189.15/7,160.53 = 2,950.90/x
  3. Step 3: Cross multiply
    5,189.15x = 7,160.53 × 2,950.90
  4. Step 4: Simplify right side
    5,189.15x = 21,130,007.98
  5. Step 5: Solve for x
    x = 21,130,007.98/5,189.15
  6. Step 6: Final answer
    x = 4,071.96

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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.