Home / 3,261.86-4,895.58-1,315.46

Finding the Fourth Proportional to 3,261.86, 4,895.58 and 1,315.46

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Solution

The fourth proportional to 3,261.86, 4,895.58 and 1,315.46 is: 1,974.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.86 : 4,895.58 = 1,315.46 : x
  2. Step 2: Convert to fraction form
    3,261.86/4,895.58 = 1,315.46/x
  3. Step 3: Cross multiply
    3,261.86x = 4,895.58 × 1,315.46
  4. Step 4: Simplify right side
    3,261.86x = 6,439,939.67
  5. Step 5: Solve for x
    x = 6,439,939.67/3,261.86
  6. Step 6: Final answer
    x = 1,974.32

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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.