Home / 7,525.20-11,289.60-3,140.22

Finding the Fourth Proportional to 7,525.20, 11,289.60 and 3,140.22

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Solution

The fourth proportional to 7,525.20, 11,289.60 and 3,140.22 is: 4,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,525.20 : 11,289.60 = 3,140.22 : x
  2. Step 2: Convert to fraction form
    7,525.20/11,289.60 = 3,140.22/x
  3. Step 3: Cross multiply
    7,525.20x = 11,289.60 × 3,140.22
  4. Step 4: Simplify right side
    7,525.20x = 35,451,827.71
  5. Step 5: Solve for x
    x = 35,451,827.71/7,525.20
  6. Step 6: Final answer
    x = 4,711.08

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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.