Home / 3,105.13-4,657.65-1,256.23

Finding the Fourth Proportional to 3,105.13, 4,657.65 and 1,256.23

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Solution

The fourth proportional to 3,105.13, 4,657.65 and 1,256.23 is: 1,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.13 : 4,657.65 = 1,256.23 : x
  2. Step 2: Convert to fraction form
    3,105.13/4,657.65 = 1,256.23/x
  3. Step 3: Cross multiply
    3,105.13x = 4,657.65 × 1,256.23
  4. Step 4: Simplify right side
    3,105.13x = 5,851,056.37
  5. Step 5: Solve for x
    x = 5,851,056.37/3,105.13
  6. Step 6: Final answer
    x = 1,884.32

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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.