Home / 7,115.58-9,819.64-4,130.33

Finding the Fourth Proportional to 7,115.58, 9,819.64 and 4,130.33

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Solution

The fourth proportional to 7,115.58, 9,819.64 and 4,130.33 is: 5,699.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.58 : 9,819.64 = 4,130.33 : x
  2. Step 2: Convert to fraction form
    7,115.58/9,819.64 = 4,130.33/x
  3. Step 3: Cross multiply
    7,115.58x = 9,819.64 × 4,130.33
  4. Step 4: Simplify right side
    7,115.58x = 40,558,353.68
  5. Step 5: Solve for x
    x = 40,558,353.68/7,115.58
  6. Step 6: Final answer
    x = 5,699.94

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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.