Home / 5,099.68-7,037.70-3,109.78

Finding the Fourth Proportional to 5,099.68, 7,037.70 and 3,109.78

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Solution

The fourth proportional to 5,099.68, 7,037.70 and 3,109.78 is: 4,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.68 : 7,037.70 = 3,109.78 : x
  2. Step 2: Convert to fraction form
    5,099.68/7,037.70 = 3,109.78/x
  3. Step 3: Cross multiply
    5,099.68x = 7,037.70 × 3,109.78
  4. Step 4: Simplify right side
    5,099.68x = 21,885,698.71
  5. Step 5: Solve for x
    x = 21,885,698.71/5,099.68
  6. Step 6: Final answer
    x = 4,291.58

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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.