Home / 2,316.32-3,196.68-1,321.36

Finding the Fourth Proportional to 2,316.32, 3,196.68 and 1,321.36

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Solution

The fourth proportional to 2,316.32, 3,196.68 and 1,321.36 is: 1,823.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.32 : 3,196.68 = 1,321.36 : x
  2. Step 2: Convert to fraction form
    2,316.32/3,196.68 = 1,321.36/x
  3. Step 3: Cross multiply
    2,316.32x = 3,196.68 × 1,321.36
  4. Step 4: Simplify right side
    2,316.32x = 4,223,965.08
  5. Step 5: Solve for x
    x = 4,223,965.08/2,316.32
  6. Step 6: Final answer
    x = 1,823.57

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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.