Home / 2,921.72-4,032-1,595.44

Finding the Fourth Proportional to 2,921.72, 4,032 and 1,595.44

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Solution

The fourth proportional to 2,921.72, 4,032 and 1,595.44 is: 2,201.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.72 : 4,032 = 1,595.44 : x
  2. Step 2: Convert to fraction form
    2,921.72/4,032 = 1,595.44/x
  3. Step 3: Cross multiply
    2,921.72x = 4,032 × 1,595.44
  4. Step 4: Simplify right side
    2,921.72x = 6,432,814.08
  5. Step 5: Solve for x
    x = 6,432,814.08/2,921.72
  6. Step 6: Final answer
    x = 2,201.72

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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.