Home / 4,148.12-6,217.86-1,955

Finding the Fourth Proportional to 4,148.12, 6,217.86 and 1,955

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Solution

The fourth proportional to 4,148.12, 6,217.86 and 1,955 is: 2,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.12 : 6,217.86 = 1,955 : x
  2. Step 2: Convert to fraction form
    4,148.12/6,217.86 = 1,955/x
  3. Step 3: Cross multiply
    4,148.12x = 6,217.86 × 1,955
  4. Step 4: Simplify right side
    4,148.12x = 12,155,916.30
  5. Step 5: Solve for x
    x = 12,155,916.30/4,148.12
  6. Step 6: Final answer
    x = 2,930.46

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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.