Home / 4,871.76-7,302.51-2,097.78

Finding the Fourth Proportional to 4,871.76, 7,302.51 and 2,097.78

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Solution

The fourth proportional to 4,871.76, 7,302.51 and 2,097.78 is: 3,144.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.76 : 7,302.51 = 2,097.78 : x
  2. Step 2: Convert to fraction form
    4,871.76/7,302.51 = 2,097.78/x
  3. Step 3: Cross multiply
    4,871.76x = 7,302.51 × 2,097.78
  4. Step 4: Simplify right side
    4,871.76x = 15,319,059.43
  5. Step 5: Solve for x
    x = 15,319,059.43/4,871.76
  6. Step 6: Final answer
    x = 3,144.46

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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.