Home / 3,818.45-5,728.14-1,352.76

Finding the Fourth Proportional to 3,818.45, 5,728.14 and 1,352.76

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Solution

The fourth proportional to 3,818.45, 5,728.14 and 1,352.76 is: 2,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.45 : 5,728.14 = 1,352.76 : x
  2. Step 2: Convert to fraction form
    3,818.45/5,728.14 = 1,352.76/x
  3. Step 3: Cross multiply
    3,818.45x = 5,728.14 × 1,352.76
  4. Step 4: Simplify right side
    3,818.45x = 7,748,798.67
  5. Step 5: Solve for x
    x = 7,748,798.67/3,818.45
  6. Step 6: Final answer
    x = 2,029.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.