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Finding the Fourth Proportional to 2,076.68, 2,869.62 and 1,975.44

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Solution

The fourth proportional to 2,076.68, 2,869.62 and 1,975.44 is: 2,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.68 : 2,869.62 = 1,975.44 : x
  2. Step 2: Convert to fraction form
    2,076.68/2,869.62 = 1,975.44/x
  3. Step 3: Cross multiply
    2,076.68x = 2,869.62 × 1,975.44
  4. Step 4: Simplify right side
    2,076.68x = 5,668,762.13
  5. Step 5: Solve for x
    x = 5,668,762.13/2,076.68
  6. Step 6: Final answer
    x = 2,729.72

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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.