Home / 7,075.64-9,764.34-3,889.02

Finding the Fourth Proportional to 7,075.64, 9,764.34 and 3,889.02

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Solution

The fourth proportional to 7,075.64, 9,764.34 and 3,889.02 is: 5,366.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.64 : 9,764.34 = 3,889.02 : x
  2. Step 2: Convert to fraction form
    7,075.64/9,764.34 = 3,889.02/x
  3. Step 3: Cross multiply
    7,075.64x = 9,764.34 × 3,889.02
  4. Step 4: Simplify right side
    7,075.64x = 37,973,713.55
  5. Step 5: Solve for x
    x = 37,973,713.55/7,075.64
  6. Step 6: Final answer
    x = 5,366.82

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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.