Home / 4,818.72-7,228.63-1,857.05

Finding the Fourth Proportional to 4,818.72, 7,228.63 and 1,857.05

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Solution

The fourth proportional to 4,818.72, 7,228.63 and 1,857.05 is: 2,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.72 : 7,228.63 = 1,857.05 : x
  2. Step 2: Convert to fraction form
    4,818.72/7,228.63 = 1,857.05/x
  3. Step 3: Cross multiply
    4,818.72x = 7,228.63 × 1,857.05
  4. Step 4: Simplify right side
    4,818.72x = 13,423,891.20
  5. Step 5: Solve for x
    x = 13,423,891.20/4,818.72
  6. Step 6: Final answer
    x = 2,785.78

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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.