Home / 3,260.25-4,891.86-1,312.07

Finding the Fourth Proportional to 3,260.25, 4,891.86 and 1,312.07

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Solution

The fourth proportional to 3,260.25, 4,891.86 and 1,312.07 is: 1,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.25 : 4,891.86 = 1,312.07 : x
  2. Step 2: Convert to fraction form
    3,260.25/4,891.86 = 1,312.07/x
  3. Step 3: Cross multiply
    3,260.25x = 4,891.86 × 1,312.07
  4. Step 4: Simplify right side
    3,260.25x = 6,418,438.29
  5. Step 5: Solve for x
    x = 6,418,438.29/3,260.25
  6. Step 6: Final answer
    x = 1,968.70

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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.