Home / 5,127.66-7,075.80-3,031.38

Finding the Fourth Proportional to 5,127.66, 7,075.80 and 3,031.38

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Solution

The fourth proportional to 5,127.66, 7,075.80 and 3,031.38 is: 4,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.66 : 7,075.80 = 3,031.38 : x
  2. Step 2: Convert to fraction form
    5,127.66/7,075.80 = 3,031.38/x
  3. Step 3: Cross multiply
    5,127.66x = 7,075.80 × 3,031.38
  4. Step 4: Simplify right side
    5,127.66x = 21,449,438.60
  5. Step 5: Solve for x
    x = 21,449,438.60/5,127.66
  6. Step 6: Final answer
    x = 4,183.09

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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.