Home / 4,617.45-6,890.13-4,120.44

Finding the Fourth Proportional to 4,617.45, 6,890.13 and 4,120.44

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Solution

The fourth proportional to 4,617.45, 6,890.13 and 4,120.44 is: 6,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,617.45 : 6,890.13 = 4,120.44 : x
  2. Step 2: Convert to fraction form
    4,617.45/6,890.13 = 4,120.44/x
  3. Step 3: Cross multiply
    4,617.45x = 6,890.13 × 4,120.44
  4. Step 4: Simplify right side
    4,617.45x = 28,390,367.26
  5. Step 5: Solve for x
    x = 28,390,367.26/4,617.45
  6. Step 6: Final answer
    x = 6,148.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.