Home / 4,774.48-7,161.76-1,311.76

Finding the Fourth Proportional to 4,774.48, 7,161.76 and 1,311.76

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Solution

The fourth proportional to 4,774.48, 7,161.76 and 1,311.76 is: 1,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774.48 : 7,161.76 = 1,311.76 : x
  2. Step 2: Convert to fraction form
    4,774.48/7,161.76 = 1,311.76/x
  3. Step 3: Cross multiply
    4,774.48x = 7,161.76 × 1,311.76
  4. Step 4: Simplify right side
    4,774.48x = 9,394,510.30
  5. Step 5: Solve for x
    x = 9,394,510.30/4,774.48
  6. Step 6: Final answer
    x = 1,967.65

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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.