Home / 2,540.92-3,506.47-1,421.93

Finding the Fourth Proportional to 2,540.92, 3,506.47 and 1,421.93

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Solution

The fourth proportional to 2,540.92, 3,506.47 and 1,421.93 is: 1,962.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.92 : 3,506.47 = 1,421.93 : x
  2. Step 2: Convert to fraction form
    2,540.92/3,506.47 = 1,421.93/x
  3. Step 3: Cross multiply
    2,540.92x = 3,506.47 × 1,421.93
  4. Step 4: Simplify right side
    2,540.92x = 4,985,930.25
  5. Step 5: Solve for x
    x = 4,985,930.25/2,540.92
  6. Step 6: Final answer
    x = 1,962.26

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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.