Home / 2,921.32-4,031.40-1,662.34

Finding the Fourth Proportional to 2,921.32, 4,031.40 and 1,662.34

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Solution

The fourth proportional to 2,921.32, 4,031.40 and 1,662.34 is: 2,294.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.32 : 4,031.40 = 1,662.34 : x
  2. Step 2: Convert to fraction form
    2,921.32/4,031.40 = 1,662.34/x
  3. Step 3: Cross multiply
    2,921.32x = 4,031.40 × 1,662.34
  4. Step 4: Simplify right side
    2,921.32x = 6,701,557.48
  5. Step 5: Solve for x
    x = 6,701,557.48/2,921.32
  6. Step 6: Final answer
    x = 2,294.02

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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.