Home / 5,127.14-7,075.86-2,888.87

Finding the Fourth Proportional to 5,127.14, 7,075.86 and 2,888.87

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Solution

The fourth proportional to 5,127.14, 7,075.86 and 2,888.87 is: 3,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.14 : 7,075.86 = 2,888.87 : x
  2. Step 2: Convert to fraction form
    5,127.14/7,075.86 = 2,888.87/x
  3. Step 3: Cross multiply
    5,127.14x = 7,075.86 × 2,888.87
  4. Step 4: Simplify right side
    5,127.14x = 20,441,239.68
  5. Step 5: Solve for x
    x = 20,441,239.68/5,127.14
  6. Step 6: Final answer
    x = 3,986.87

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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.