Home / 3,181.51-4,769.08-1,512.71

Finding the Fourth Proportional to 3,181.51, 4,769.08 and 1,512.71

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Solution

The fourth proportional to 3,181.51, 4,769.08 and 1,512.71 is: 2,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.51 : 4,769.08 = 1,512.71 : x
  2. Step 2: Convert to fraction form
    3,181.51/4,769.08 = 1,512.71/x
  3. Step 3: Cross multiply
    3,181.51x = 4,769.08 × 1,512.71
  4. Step 4: Simplify right side
    3,181.51x = 7,214,225.26
  5. Step 5: Solve for x
    x = 7,214,225.26/3,181.51
  6. Step 6: Final answer
    x = 2,267.55

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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.