Home / 7,239.72-10,859.38-3,077.64

Finding the Fourth Proportional to 7,239.72, 10,859.38 and 3,077.64

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Solution

The fourth proportional to 7,239.72, 10,859.38 and 3,077.64 is: 4,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.72 : 10,859.38 = 3,077.64 : x
  2. Step 2: Convert to fraction form
    7,239.72/10,859.38 = 3,077.64/x
  3. Step 3: Cross multiply
    7,239.72x = 10,859.38 × 3,077.64
  4. Step 4: Simplify right side
    7,239.72x = 33,421,246.88
  5. Step 5: Solve for x
    x = 33,421,246.88/7,239.72
  6. Step 6: Final answer
    x = 4,616.37

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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.