Home / 2,973.78-4,103.01-1,926.90

Finding the Fourth Proportional to 2,973.78, 4,103.01 and 1,926.90

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Solution

The fourth proportional to 2,973.78, 4,103.01 and 1,926.90 is: 2,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.78 : 4,103.01 = 1,926.90 : x
  2. Step 2: Convert to fraction form
    2,973.78/4,103.01 = 1,926.90/x
  3. Step 3: Cross multiply
    2,973.78x = 4,103.01 × 1,926.90
  4. Step 4: Simplify right side
    2,973.78x = 7,906,089.97
  5. Step 5: Solve for x
    x = 7,906,089.97/2,973.78
  6. Step 6: Final answer
    x = 2,658.60

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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.