Home / 7,420.44-11,129.46-2,225.40

Finding the Fourth Proportional to 7,420.44, 11,129.46 and 2,225.40

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Solution

The fourth proportional to 7,420.44, 11,129.46 and 2,225.40 is: 3,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.44 : 11,129.46 = 2,225.40 : x
  2. Step 2: Convert to fraction form
    7,420.44/11,129.46 = 2,225.40/x
  3. Step 3: Cross multiply
    7,420.44x = 11,129.46 × 2,225.40
  4. Step 4: Simplify right side
    7,420.44x = 24,767,500.28
  5. Step 5: Solve for x
    x = 24,767,500.28/7,420.44
  6. Step 6: Final answer
    x = 3,337.74

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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.