Home / 4,378.56-6,567.72-1,091.76

Finding the Fourth Proportional to 4,378.56, 6,567.72 and 1,091.76

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Solution

The fourth proportional to 4,378.56, 6,567.72 and 1,091.76 is: 1,637.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.56 : 6,567.72 = 1,091.76 : x
  2. Step 2: Convert to fraction form
    4,378.56/6,567.72 = 1,091.76/x
  3. Step 3: Cross multiply
    4,378.56x = 6,567.72 × 1,091.76
  4. Step 4: Simplify right side
    4,378.56x = 7,170,373.99
  5. Step 5: Solve for x
    x = 7,170,373.99/4,378.56
  6. Step 6: Final answer
    x = 1,637.61

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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.