Home / 6,087.21-8,400.38-3,398.69

Finding the Fourth Proportional to 6,087.21, 8,400.38 and 3,398.69

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Solution

The fourth proportional to 6,087.21, 8,400.38 and 3,398.69 is: 4,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,087.21 : 8,400.38 = 3,398.69 : x
  2. Step 2: Convert to fraction form
    6,087.21/8,400.38 = 3,398.69/x
  3. Step 3: Cross multiply
    6,087.21x = 8,400.38 × 3,398.69
  4. Step 4: Simplify right side
    6,087.21x = 28,550,228.51
  5. Step 5: Solve for x
    x = 28,550,228.51/6,087.21
  6. Step 6: Final answer
    x = 4,690.20

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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.