Home / 7,075.87-10,615.14-3,378.37

Finding the Fourth Proportional to 7,075.87, 10,615.14 and 3,378.37

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Solution

The fourth proportional to 7,075.87, 10,615.14 and 3,378.37 is: 5,068.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.87 : 10,615.14 = 3,378.37 : x
  2. Step 2: Convert to fraction form
    7,075.87/10,615.14 = 3,378.37/x
  3. Step 3: Cross multiply
    7,075.87x = 10,615.14 × 3,378.37
  4. Step 4: Simplify right side
    7,075.87x = 35,861,870.52
  5. Step 5: Solve for x
    x = 35,861,870.52/7,075.87
  6. Step 6: Final answer
    x = 5,068.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.