Home / 2,921.75-4,031.96-1,595.42

Finding the Fourth Proportional to 2,921.75, 4,031.96 and 1,595.42

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Solution

The fourth proportional to 2,921.75, 4,031.96 and 1,595.42 is: 2,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.75 : 4,031.96 = 1,595.42 : x
  2. Step 2: Convert to fraction form
    2,921.75/4,031.96 = 1,595.42/x
  3. Step 3: Cross multiply
    2,921.75x = 4,031.96 × 1,595.42
  4. Step 4: Simplify right side
    2,921.75x = 6,432,669.62
  5. Step 5: Solve for x
    x = 6,432,669.62/2,921.75
  6. Step 6: Final answer
    x = 2,201.65

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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.