Home / 3,644.28-5,031.18-2,405.88

Finding the Fourth Proportional to 3,644.28, 5,031.18 and 2,405.88

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Solution

The fourth proportional to 3,644.28, 5,031.18 and 2,405.88 is: 3,321.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.28 : 5,031.18 = 2,405.88 : x
  2. Step 2: Convert to fraction form
    3,644.28/5,031.18 = 2,405.88/x
  3. Step 3: Cross multiply
    3,644.28x = 5,031.18 × 2,405.88
  4. Step 4: Simplify right side
    3,644.28x = 12,104,415.34
  5. Step 5: Solve for x
    x = 12,104,415.34/3,644.28
  6. Step 6: Final answer
    x = 3,321.48

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1.5x scale

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.