Home / 3,057.36-4,218.96-1,878.16

Finding the Fourth Proportional to 3,057.36, 4,218.96 and 1,878.16

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Solution

The fourth proportional to 3,057.36, 4,218.96 and 1,878.16 is: 2,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.36 : 4,218.96 = 1,878.16 : x
  2. Step 2: Convert to fraction form
    3,057.36/4,218.96 = 1,878.16/x
  3. Step 3: Cross multiply
    3,057.36x = 4,218.96 × 1,878.16
  4. Step 4: Simplify right side
    3,057.36x = 7,923,881.91
  5. Step 5: Solve for x
    x = 7,923,881.91/3,057.36
  6. Step 6: Final answer
    x = 2,591.74

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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.