Home / 3,315.86-4,575.80-1,803.38

Finding the Fourth Proportional to 3,315.86, 4,575.80 and 1,803.38

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Solution

The fourth proportional to 3,315.86, 4,575.80 and 1,803.38 is: 2,488.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.86 : 4,575.80 = 1,803.38 : x
  2. Step 2: Convert to fraction form
    3,315.86/4,575.80 = 1,803.38/x
  3. Step 3: Cross multiply
    3,315.86x = 4,575.80 × 1,803.38
  4. Step 4: Simplify right side
    3,315.86x = 8,251,887.83
  5. Step 5: Solve for x
    x = 8,251,887.83/3,315.86
  6. Step 6: Final answer
    x = 2,488.61

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Why These Related Problems?

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