Home / 2,921.33-4,031.50-1,595.12

Finding the Fourth Proportional to 2,921.33, 4,031.50 and 1,595.12

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Solution

The fourth proportional to 2,921.33, 4,031.50 and 1,595.12 is: 2,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.33 : 4,031.50 = 1,595.12 : x
  2. Step 2: Convert to fraction form
    2,921.33/4,031.50 = 1,595.12/x
  3. Step 3: Cross multiply
    2,921.33x = 4,031.50 × 1,595.12
  4. Step 4: Simplify right side
    2,921.33x = 6,430,726.28
  5. Step 5: Solve for x
    x = 6,430,726.28/2,921.33
  6. Step 6: Final answer
    x = 2,201.30

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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.