Home / 5,421.21-8,132.13-1,525.32

Finding the Fourth Proportional to 5,421.21, 8,132.13 and 1,525.32

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Solution

The fourth proportional to 5,421.21, 8,132.13 and 1,525.32 is: 2,288.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.21 : 8,132.13 = 1,525.32 : x
  2. Step 2: Convert to fraction form
    5,421.21/8,132.13 = 1,525.32/x
  3. Step 3: Cross multiply
    5,421.21x = 8,132.13 × 1,525.32
  4. Step 4: Simplify right side
    5,421.21x = 12,404,100.53
  5. Step 5: Solve for x
    x = 12,404,100.53/5,421.21
  6. Step 6: Final answer
    x = 2,288.07

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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.