Home / 2,316.05-3,195.38-1,320.63

Finding the Fourth Proportional to 2,316.05, 3,195.38 and 1,320.63

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Solution

The fourth proportional to 2,316.05, 3,195.38 and 1,320.63 is: 1,822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.05 : 3,195.38 = 1,320.63 : x
  2. Step 2: Convert to fraction form
    2,316.05/3,195.38 = 1,320.63/x
  3. Step 3: Cross multiply
    2,316.05x = 3,195.38 × 1,320.63
  4. Step 4: Simplify right side
    2,316.05x = 4,219,914.69
  5. Step 5: Solve for x
    x = 4,219,914.69/2,316.05
  6. Step 6: Final answer
    x = 1,822.03

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Half scale
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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.