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Finding the Fourth Proportional to 3,057.66, 4,215.12 and 2,259.81

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Solution

The fourth proportional to 3,057.66, 4,215.12 and 2,259.81 is: 3,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.66 : 4,215.12 = 2,259.81 : x
  2. Step 2: Convert to fraction form
    3,057.66/4,215.12 = 2,259.81/x
  3. Step 3: Cross multiply
    3,057.66x = 4,215.12 × 2,259.81
  4. Step 4: Simplify right side
    3,057.66x = 9,525,370.33
  5. Step 5: Solve for x
    x = 9,525,370.33/3,057.66
  6. Step 6: Final answer
    x = 3,115.25

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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.