Home / 4,575.86-6,315.90-3,159.78

Finding the Fourth Proportional to 4,575.86, 6,315.90 and 3,159.78

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Solution

The fourth proportional to 4,575.86, 6,315.90 and 3,159.78 is: 4,361.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,575.86 : 6,315.90 = 3,159.78 : x
  2. Step 2: Convert to fraction form
    4,575.86/6,315.90 = 3,159.78/x
  3. Step 3: Cross multiply
    4,575.86x = 6,315.90 × 3,159.78
  4. Step 4: Simplify right side
    4,575.86x = 19,956,854.50
  5. Step 5: Solve for x
    x = 19,956,854.50/4,575.86
  6. Step 6: Final answer
    x = 4,361.33

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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.