Home / 5,075.87-7,006.10-3,186.14

Finding the Fourth Proportional to 5,075.87, 7,006.10 and 3,186.14

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Solution

The fourth proportional to 5,075.87, 7,006.10 and 3,186.14 is: 4,397.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.87 : 7,006.10 = 3,186.14 : x
  2. Step 2: Convert to fraction form
    5,075.87/7,006.10 = 3,186.14/x
  3. Step 3: Cross multiply
    5,075.87x = 7,006.10 × 3,186.14
  4. Step 4: Simplify right side
    5,075.87x = 22,322,364.49
  5. Step 5: Solve for x
    x = 22,322,364.49/5,075.87
  6. Step 6: Final answer
    x = 4,397.75

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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.