Home / 5,420.88-8,130.60-1,525.62

Finding the Fourth Proportional to 5,420.88, 8,130.60 and 1,525.62

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Solution

The fourth proportional to 5,420.88, 8,130.60 and 1,525.62 is: 2,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.88 : 8,130.60 = 1,525.62 : x
  2. Step 2: Convert to fraction form
    5,420.88/8,130.60 = 1,525.62/x
  3. Step 3: Cross multiply
    5,420.88x = 8,130.60 × 1,525.62
  4. Step 4: Simplify right side
    5,420.88x = 12,404,205.97
  5. Step 5: Solve for x
    x = 12,404,205.97/5,420.88
  6. Step 6: Final answer
    x = 2,288.23

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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.