Home / 3,057.18-4,218.71-1,798.45

Finding the Fourth Proportional to 3,057.18, 4,218.71 and 1,798.45

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Solution

The fourth proportional to 3,057.18, 4,218.71 and 1,798.45 is: 2,481.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.18 : 4,218.71 = 1,798.45 : x
  2. Step 2: Convert to fraction form
    3,057.18/4,218.71 = 1,798.45/x
  3. Step 3: Cross multiply
    3,057.18x = 4,218.71 × 1,798.45
  4. Step 4: Simplify right side
    3,057.18x = 7,587,139.00
  5. Step 5: Solve for x
    x = 7,587,139.00/3,057.18
  6. Step 6: Final answer
    x = 2,481.74

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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.