Home / 7,501.21-11,253.20-3,119.02

Finding the Fourth Proportional to 7,501.21, 11,253.20 and 3,119.02

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Solution

The fourth proportional to 7,501.21, 11,253.20 and 3,119.02 is: 4,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,501.21 : 11,253.20 = 3,119.02 : x
  2. Step 2: Convert to fraction form
    7,501.21/11,253.20 = 3,119.02/x
  3. Step 3: Cross multiply
    7,501.21x = 11,253.20 × 3,119.02
  4. Step 4: Simplify right side
    7,501.21x = 35,098,955.86
  5. Step 5: Solve for x
    x = 35,098,955.86/7,501.21
  6. Step 6: Final answer
    x = 4,679.11

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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.