Home / 7,075.11-9,763.82-3,888.48

Finding the Fourth Proportional to 7,075.11, 9,763.82 and 3,888.48

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Solution

The fourth proportional to 7,075.11, 9,763.82 and 3,888.48 is: 5,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.11 : 9,763.82 = 3,888.48 : x
  2. Step 2: Convert to fraction form
    7,075.11/9,763.82 = 3,888.48/x
  3. Step 3: Cross multiply
    7,075.11x = 9,763.82 × 3,888.48
  4. Step 4: Simplify right side
    7,075.11x = 37,966,399.35
  5. Step 5: Solve for x
    x = 37,966,399.35/7,075.11
  6. Step 6: Final answer
    x = 5,366.19

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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.