Home / 7,029.72-10,522.47-3,862.80

Finding the Fourth Proportional to 7,029.72, 10,522.47 and 3,862.80

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Solution

The fourth proportional to 7,029.72, 10,522.47 and 3,862.80 is: 5,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,029.72 : 10,522.47 = 3,862.80 : x
  2. Step 2: Convert to fraction form
    7,029.72/10,522.47 = 3,862.80/x
  3. Step 3: Cross multiply
    7,029.72x = 10,522.47 × 3,862.80
  4. Step 4: Simplify right side
    7,029.72x = 40,646,197.12
  5. Step 5: Solve for x
    x = 40,646,197.12/7,029.72
  6. Step 6: Final answer
    x = 5,782.05

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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.