Home / 2,818.53-3,889.22-1,559.49

Finding the Fourth Proportional to 2,818.53, 3,889.22 and 1,559.49

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Solution

The fourth proportional to 2,818.53, 3,889.22 and 1,559.49 is: 2,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.53 : 3,889.22 = 1,559.49 : x
  2. Step 2: Convert to fraction form
    2,818.53/3,889.22 = 1,559.49/x
  3. Step 3: Cross multiply
    2,818.53x = 3,889.22 × 1,559.49
  4. Step 4: Simplify right side
    2,818.53x = 6,065,177.32
  5. Step 5: Solve for x
    x = 6,065,177.32/2,818.53
  6. Step 6: Final answer
    x = 2,151.89

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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.