Home / 3,151.18-4,720.28-1,849.50

Finding the Fourth Proportional to 3,151.18, 4,720.28 and 1,849.50

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Solution

The fourth proportional to 3,151.18, 4,720.28 and 1,849.50 is: 2,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.18 : 4,720.28 = 1,849.50 : x
  2. Step 2: Convert to fraction form
    3,151.18/4,720.28 = 1,849.50/x
  3. Step 3: Cross multiply
    3,151.18x = 4,720.28 × 1,849.50
  4. Step 4: Simplify right side
    3,151.18x = 8,730,157.86
  5. Step 5: Solve for x
    x = 8,730,157.86/3,151.18
  6. Step 6: Final answer
    x = 2,770.44

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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.