Home / 5,126.91-7,075.18-2,888.83

Finding the Fourth Proportional to 5,126.91, 7,075.18 and 2,888.83

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Solution

The fourth proportional to 5,126.91, 7,075.18 and 2,888.83 is: 3,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.91 : 7,075.18 = 2,888.83 : x
  2. Step 2: Convert to fraction form
    5,126.91/7,075.18 = 2,888.83/x
  3. Step 3: Cross multiply
    5,126.91x = 7,075.18 × 2,888.83
  4. Step 4: Simplify right side
    5,126.91x = 20,438,992.24
  5. Step 5: Solve for x
    x = 20,438,992.24/5,126.91
  6. Step 6: Final answer
    x = 3,986.61

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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.