Home / 2,099.19-3,148.79-943.59

Finding the Fourth Proportional to 2,099.19, 3,148.79 and 943.59

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Solution

The fourth proportional to 2,099.19, 3,148.79 and 943.59 is: 1,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.19 : 3,148.79 = 943.59 : x
  2. Step 2: Convert to fraction form
    2,099.19/3,148.79 = 943.59/x
  3. Step 3: Cross multiply
    2,099.19x = 3,148.79 × 943.59
  4. Step 4: Simplify right side
    2,099.19x = 2,971,166.76
  5. Step 5: Solve for x
    x = 2,971,166.76/2,099.19
  6. Step 6: Final answer
    x = 1,415.39

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Similar ratio
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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.