Home / 7,238.98-10,860.06-4,120.45

Finding the Fourth Proportional to 7,238.98, 10,860.06 and 4,120.45

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Solution

The fourth proportional to 7,238.98, 10,860.06 and 4,120.45 is: 6,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.98 : 10,860.06 = 4,120.45 : x
  2. Step 2: Convert to fraction form
    7,238.98/10,860.06 = 4,120.45/x
  3. Step 3: Cross multiply
    7,238.98x = 10,860.06 × 4,120.45
  4. Step 4: Simplify right side
    7,238.98x = 44,748,313.62
  5. Step 5: Solve for x
    x = 44,748,313.62/7,238.98
  6. Step 6: Final answer
    x = 6,181.58

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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.