Home / 5,118.39-7,680.42-4,746.60

Finding the Fourth Proportional to 5,118.39, 7,680.42 and 4,746.60

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Solution

The fourth proportional to 5,118.39, 7,680.42 and 4,746.60 is: 7,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.39 : 7,680.42 = 4,746.60 : x
  2. Step 2: Convert to fraction form
    5,118.39/7,680.42 = 4,746.60/x
  3. Step 3: Cross multiply
    5,118.39x = 7,680.42 × 4,746.60
  4. Step 4: Simplify right side
    5,118.39x = 36,455,881.57
  5. Step 5: Solve for x
    x = 36,455,881.57/5,118.39
  6. Step 6: Final answer
    x = 7,122.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.