Home / 2,921.86-4,029.53-1,926.82

Finding the Fourth Proportional to 2,921.86, 4,029.53 and 1,926.82

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Solution

The fourth proportional to 2,921.86, 4,029.53 and 1,926.82 is: 2,657.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.86 : 4,029.53 = 1,926.82 : x
  2. Step 2: Convert to fraction form
    2,921.86/4,029.53 = 1,926.82/x
  3. Step 3: Cross multiply
    2,921.86x = 4,029.53 × 1,926.82
  4. Step 4: Simplify right side
    2,921.86x = 7,764,178.99
  5. Step 5: Solve for x
    x = 7,764,178.99/2,921.86
  6. Step 6: Final answer
    x = 2,657.27

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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.