Home / 2,921.29-4,031.48-1,662.53

Finding the Fourth Proportional to 2,921.29, 4,031.48 and 1,662.53

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Solution

The fourth proportional to 2,921.29, 4,031.48 and 1,662.53 is: 2,294.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.29 : 4,031.48 = 1,662.53 : x
  2. Step 2: Convert to fraction form
    2,921.29/4,031.48 = 1,662.53/x
  3. Step 3: Cross multiply
    2,921.29x = 4,031.48 × 1,662.53
  4. Step 4: Simplify right side
    2,921.29x = 6,702,448.13
  5. Step 5: Solve for x
    x = 6,702,448.13/2,921.29
  6. Step 6: Final answer
    x = 2,294.35

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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.