Home / 5,148.59-7,105.05-2,790.72

Finding the Fourth Proportional to 5,148.59, 7,105.05 and 2,790.72

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Solution

The fourth proportional to 5,148.59, 7,105.05 and 2,790.72 is: 3,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.59 : 7,105.05 = 2,790.72 : x
  2. Step 2: Convert to fraction form
    5,148.59/7,105.05 = 2,790.72/x
  3. Step 3: Cross multiply
    5,148.59x = 7,105.05 × 2,790.72
  4. Step 4: Simplify right side
    5,148.59x = 19,828,205.14
  5. Step 5: Solve for x
    x = 19,828,205.14/5,148.59
  6. Step 6: Final answer
    x = 3,851.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.