Home / 7,146.44-10,726.21-3,638.87

Finding the Fourth Proportional to 7,146.44, 10,726.21 and 3,638.87

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Solution

The fourth proportional to 7,146.44, 10,726.21 and 3,638.87 is: 5,461.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.44 : 10,726.21 = 3,638.87 : x
  2. Step 2: Convert to fraction form
    7,146.44/10,726.21 = 3,638.87/x
  3. Step 3: Cross multiply
    7,146.44x = 10,726.21 × 3,638.87
  4. Step 4: Simplify right side
    7,146.44x = 39,031,314.79
  5. Step 5: Solve for x
    x = 39,031,314.79/7,146.44
  6. Step 6: Final answer
    x = 5,461.64

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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.