Home / 2,921.70-4,031.88-1,595.43

Finding the Fourth Proportional to 2,921.70, 4,031.88 and 1,595.43

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Solution

The fourth proportional to 2,921.70, 4,031.88 and 1,595.43 is: 2,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.70 : 4,031.88 = 1,595.43 : x
  2. Step 2: Convert to fraction form
    2,921.70/4,031.88 = 1,595.43/x
  3. Step 3: Cross multiply
    2,921.70x = 4,031.88 × 1,595.43
  4. Step 4: Simplify right side
    2,921.70x = 6,432,554.17
  5. Step 5: Solve for x
    x = 6,432,554.17/2,921.70
  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.