Home / 4,774.24-7,161.20-1,311.48

Finding the Fourth Proportional to 4,774.24, 7,161.20 and 1,311.48

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Solution

The fourth proportional to 4,774.24, 7,161.20 and 1,311.48 is: 1,967.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.24 : 7,161.20 = 1,311.48 : x
  2. Step 2: Convert to fraction form
    4,774.24/7,161.20 = 1,311.48/x
  3. Step 3: Cross multiply
    4,774.24x = 7,161.20 × 1,311.48
  4. Step 4: Simplify right side
    4,774.24x = 9,391,770.58
  5. Step 5: Solve for x
    x = 9,391,770.58/4,774.24
  6. Step 6: Final answer
    x = 1,967.18

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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.