Home / 7,075.85-9,764.20-3,889.08

Finding the Fourth Proportional to 7,075.85, 9,764.20 and 3,889.08

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Solution

The fourth proportional to 7,075.85, 9,764.20 and 3,889.08 is: 5,366.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.85 : 9,764.20 = 3,889.08 : x
  2. Step 2: Convert to fraction form
    7,075.85/9,764.20 = 3,889.08/x
  3. Step 3: Cross multiply
    7,075.85x = 9,764.20 × 3,889.08
  4. Step 4: Simplify right side
    7,075.85x = 37,973,737.92
  5. Step 5: Solve for x
    x = 37,973,737.92/7,075.85
  6. Step 6: Final answer
    x = 5,366.67

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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.