Home / 6,115.10-8,438.93-3,320.62

Finding the Fourth Proportional to 6,115.10, 8,438.93 and 3,320.62

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Solution

The fourth proportional to 6,115.10, 8,438.93 and 3,320.62 is: 4,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.10 : 8,438.93 = 3,320.62 : x
  2. Step 2: Convert to fraction form
    6,115.10/8,438.93 = 3,320.62/x
  3. Step 3: Cross multiply
    6,115.10x = 8,438.93 × 3,320.62
  4. Step 4: Simplify right side
    6,115.10x = 28,022,479.74
  5. Step 5: Solve for x
    x = 28,022,479.74/6,115.10
  6. Step 6: Final answer
    x = 4,582.51

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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.