Home / 6,749.76-9,315.36-3,956.16

Finding the Fourth Proportional to 6,749.76, 9,315.36 and 3,956.16

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Solution

The fourth proportional to 6,749.76, 9,315.36 and 3,956.16 is: 5,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.76 : 9,315.36 = 3,956.16 : x
  2. Step 2: Convert to fraction form
    6,749.76/9,315.36 = 3,956.16/x
  3. Step 3: Cross multiply
    6,749.76x = 9,315.36 × 3,956.16
  4. Step 4: Simplify right side
    6,749.76x = 36,853,054.62
  5. Step 5: Solve for x
    x = 36,853,054.62/6,749.76
  6. Step 6: Final answer
    x = 5,459.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.