Home / 5,126.84-7,075.37-2,888.51

Finding the Fourth Proportional to 5,126.84, 7,075.37 and 2,888.51

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Solution

The fourth proportional to 5,126.84, 7,075.37 and 2,888.51 is: 3,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.84 : 7,075.37 = 2,888.51 : x
  2. Step 2: Convert to fraction form
    5,126.84/7,075.37 = 2,888.51/x
  3. Step 3: Cross multiply
    5,126.84x = 7,075.37 × 2,888.51
  4. Step 4: Simplify right side
    5,126.84x = 20,437,227.18
  5. Step 5: Solve for x
    x = 20,437,227.18/5,126.84
  6. Step 6: Final answer
    x = 3,986.32

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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.