Home / 3,918.40-5,407.30-2,425.93

Finding the Fourth Proportional to 3,918.40, 5,407.30 and 2,425.93

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Solution

The fourth proportional to 3,918.40, 5,407.30 and 2,425.93 is: 3,347.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.40 : 5,407.30 = 2,425.93 : x
  2. Step 2: Convert to fraction form
    3,918.40/5,407.30 = 2,425.93/x
  3. Step 3: Cross multiply
    3,918.40x = 5,407.30 × 2,425.93
  4. Step 4: Simplify right side
    3,918.40x = 13,117,731.29
  5. Step 5: Solve for x
    x = 13,117,731.29/3,918.40
  6. Step 6: Final answer
    x = 3,347.73

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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.