Home / 3,421.25-5,127.11-2,587.63

Finding the Fourth Proportional to 3,421.25, 5,127.11 and 2,587.63

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Solution

The fourth proportional to 3,421.25, 5,127.11 and 2,587.63 is: 3,877.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.25 : 5,127.11 = 2,587.63 : x
  2. Step 2: Convert to fraction form
    3,421.25/5,127.11 = 2,587.63/x
  3. Step 3: Cross multiply
    3,421.25x = 5,127.11 × 2,587.63
  4. Step 4: Simplify right side
    3,421.25x = 13,267,063.65
  5. Step 5: Solve for x
    x = 13,267,063.65/3,421.25
  6. Step 6: Final answer
    x = 3,877.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.