Home / 3,161.09-4,741.65-1,312.18

Finding the Fourth Proportional to 3,161.09, 4,741.65 and 1,312.18

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Solution

The fourth proportional to 3,161.09, 4,741.65 and 1,312.18 is: 1,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.09 : 4,741.65 = 1,312.18 : x
  2. Step 2: Convert to fraction form
    3,161.09/4,741.65 = 1,312.18/x
  3. Step 3: Cross multiply
    3,161.09x = 4,741.65 × 1,312.18
  4. Step 4: Simplify right side
    3,161.09x = 6,221,886.44
  5. Step 5: Solve for x
    x = 6,221,886.44/3,161.09
  6. Step 6: Final answer
    x = 1,968.27

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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.