Home / 2,818.68-3,889.73-1,559.71

Finding the Fourth Proportional to 2,818.68, 3,889.73 and 1,559.71

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Solution

The fourth proportional to 2,818.68, 3,889.73 and 1,559.71 is: 2,152.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.68 : 3,889.73 = 1,559.71 : x
  2. Step 2: Convert to fraction form
    2,818.68/3,889.73 = 1,559.71/x
  3. Step 3: Cross multiply
    2,818.68x = 3,889.73 × 1,559.71
  4. Step 4: Simplify right side
    2,818.68x = 6,066,846.88
  5. Step 5: Solve for x
    x = 6,066,846.88/2,818.68
  6. Step 6: Final answer
    x = 2,152.37

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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.