Home / 7,529.05-11,291.55-3,145.60

Finding the Fourth Proportional to 7,529.05, 11,291.55 and 3,145.60

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Solution

The fourth proportional to 7,529.05, 11,291.55 and 3,145.60 is: 4,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.05 : 11,291.55 = 3,145.60 : x
  2. Step 2: Convert to fraction form
    7,529.05/11,291.55 = 3,145.60/x
  3. Step 3: Cross multiply
    7,529.05x = 11,291.55 × 3,145.60
  4. Step 4: Simplify right side
    7,529.05x = 35,518,699.68
  5. Step 5: Solve for x
    x = 35,518,699.68/7,529.05
  6. Step 6: Final answer
    x = 4,717.55

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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.