Home / 2,921.34-4,029.70-1,926.26

Finding the Fourth Proportional to 2,921.34, 4,029.70 and 1,926.26

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Solution

The fourth proportional to 2,921.34, 4,029.70 and 1,926.26 is: 2,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.34 : 4,029.70 = 1,926.26 : x
  2. Step 2: Convert to fraction form
    2,921.34/4,029.70 = 1,926.26/x
  3. Step 3: Cross multiply
    2,921.34x = 4,029.70 × 1,926.26
  4. Step 4: Simplify right side
    2,921.34x = 7,762,249.92
  5. Step 5: Solve for x
    x = 7,762,249.92/2,921.34
  6. Step 6: Final answer
    x = 2,657.09

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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.