Home / 7,375.20-10,174.33-4,390.40

Finding the Fourth Proportional to 7,375.20, 10,174.33 and 4,390.40

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Solution

The fourth proportional to 7,375.20, 10,174.33 and 4,390.40 is: 6,056.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.20 : 10,174.33 = 4,390.40 : x
  2. Step 2: Convert to fraction form
    7,375.20/10,174.33 = 4,390.40/x
  3. Step 3: Cross multiply
    7,375.20x = 10,174.33 × 4,390.40
  4. Step 4: Simplify right side
    7,375.20x = 44,669,421.70
  5. Step 5: Solve for x
    x = 44,669,421.70/7,375.20
  6. Step 6: Final answer
    x = 6,056.70

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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.