Home / 3,927.08-5,420.38-2,434.10

Finding the Fourth Proportional to 3,927.08, 5,420.38 and 2,434.10

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Solution

The fourth proportional to 3,927.08, 5,420.38 and 2,434.10 is: 3,359.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.08 : 5,420.38 = 2,434.10 : x
  2. Step 2: Convert to fraction form
    3,927.08/5,420.38 = 2,434.10/x
  3. Step 3: Cross multiply
    3,927.08x = 5,420.38 × 2,434.10
  4. Step 4: Simplify right side
    3,927.08x = 13,193,746.96
  5. Step 5: Solve for x
    x = 13,193,746.96/3,927.08
  6. Step 6: Final answer
    x = 3,359.68

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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.