Home / 3,007.20-4,151.43-1,889.76

Finding the Fourth Proportional to 3,007.20, 4,151.43 and 1,889.76

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Solution

The fourth proportional to 3,007.20, 4,151.43 and 1,889.76 is: 2,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.20 : 4,151.43 = 1,889.76 : x
  2. Step 2: Convert to fraction form
    3,007.20/4,151.43 = 1,889.76/x
  3. Step 3: Cross multiply
    3,007.20x = 4,151.43 × 1,889.76
  4. Step 4: Simplify right side
    3,007.20x = 7,845,206.36
  5. Step 5: Solve for x
    x = 7,845,206.36/3,007.20
  6. Step 6: Final answer
    x = 2,608.81

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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.