Home / 4,740.54-7,109.98-2,142.86

Finding the Fourth Proportional to 4,740.54, 7,109.98 and 2,142.86

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Solution

The fourth proportional to 4,740.54, 7,109.98 and 2,142.86 is: 3,213.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.54 : 7,109.98 = 2,142.86 : x
  2. Step 2: Convert to fraction form
    4,740.54/7,109.98 = 2,142.86/x
  3. Step 3: Cross multiply
    4,740.54x = 7,109.98 × 2,142.86
  4. Step 4: Simplify right side
    4,740.54x = 15,235,691.74
  5. Step 5: Solve for x
    x = 15,235,691.74/4,740.54
  6. Step 6: Final answer
    x = 3,213.91

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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.