Home / 6,419.75-8,859.67-3,587.14

Finding the Fourth Proportional to 6,419.75, 8,859.67 and 3,587.14

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Solution

The fourth proportional to 6,419.75, 8,859.67 and 3,587.14 is: 4,950.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.75 : 8,859.67 = 3,587.14 : x
  2. Step 2: Convert to fraction form
    6,419.75/8,859.67 = 3,587.14/x
  3. Step 3: Cross multiply
    6,419.75x = 8,859.67 × 3,587.14
  4. Step 4: Simplify right side
    6,419.75x = 31,780,845.53
  5. Step 5: Solve for x
    x = 31,780,845.53/6,419.75
  6. Step 6: Final answer
    x = 4,950.48

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1.5x scale

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.