Home / 5,120.07-7,076.01-3,860.67

Finding the Fourth Proportional to 5,120.07, 7,076.01 and 3,860.67

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Solution

The fourth proportional to 5,120.07, 7,076.01 and 3,860.67 is: 5,335.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.07 : 7,076.01 = 3,860.67 : x
  2. Step 2: Convert to fraction form
    5,120.07/7,076.01 = 3,860.67/x
  3. Step 3: Cross multiply
    5,120.07x = 7,076.01 × 3,860.67
  4. Step 4: Simplify right side
    5,120.07x = 27,318,139.53
  5. Step 5: Solve for x
    x = 27,318,139.53/5,120.07
  6. Step 6: Final answer
    x = 5,335.50

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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.