Home / 2,921.38-4,031.50-1,873.44

Finding the Fourth Proportional to 2,921.38, 4,031.50 and 1,873.44

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Solution

The fourth proportional to 2,921.38, 4,031.50 and 1,873.44 is: 2,585.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.38 : 4,031.50 = 1,873.44 : x
  2. Step 2: Convert to fraction form
    2,921.38/4,031.50 = 1,873.44/x
  3. Step 3: Cross multiply
    2,921.38x = 4,031.50 × 1,873.44
  4. Step 4: Simplify right side
    2,921.38x = 7,552,773.36
  5. Step 5: Solve for x
    x = 7,552,773.36/2,921.38
  6. Step 6: Final answer
    x = 2,585.34

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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.