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Finding the Fourth Proportional to 2,797.48, 3,860.71 and 1,851.64

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Solution

The fourth proportional to 2,797.48, 3,860.71 and 1,851.64 is: 2,555.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.48 : 3,860.71 = 1,851.64 : x
  2. Step 2: Convert to fraction form
    2,797.48/3,860.71 = 1,851.64/x
  3. Step 3: Cross multiply
    2,797.48x = 3,860.71 × 1,851.64
  4. Step 4: Simplify right side
    2,797.48x = 7,148,630.78
  5. Step 5: Solve for x
    x = 7,148,630.78/2,797.48
  6. Step 6: Final answer
    x = 2,555.38

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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.