Home / 5,515.28-7,609.26-3,125.02

Finding the Fourth Proportional to 5,515.28, 7,609.26 and 3,125.02

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Solution

The fourth proportional to 5,515.28, 7,609.26 and 3,125.02 is: 4,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.28 : 7,609.26 = 3,125.02 : x
  2. Step 2: Convert to fraction form
    5,515.28/7,609.26 = 3,125.02/x
  3. Step 3: Cross multiply
    5,515.28x = 7,609.26 × 3,125.02
  4. Step 4: Simplify right side
    5,515.28x = 23,779,074.06
  5. Step 5: Solve for x
    x = 23,779,074.06/5,515.28
  6. Step 6: Final answer
    x = 4,311.49

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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.