Home / 4,868.75-6,719.37-2,981.58

Finding the Fourth Proportional to 4,868.75, 6,719.37 and 2,981.58

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Solution

The fourth proportional to 4,868.75, 6,719.37 and 2,981.58 is: 4,114.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.75 : 6,719.37 = 2,981.58 : x
  2. Step 2: Convert to fraction form
    4,868.75/6,719.37 = 2,981.58/x
  3. Step 3: Cross multiply
    4,868.75x = 6,719.37 × 2,981.58
  4. Step 4: Simplify right side
    4,868.75x = 20,034,339.20
  5. Step 5: Solve for x
    x = 20,034,339.20/4,868.75
  6. Step 6: Final answer
    x = 4,114.89

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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.