Home / 7,276.16-10,917.76-3,378.56

Finding the Fourth Proportional to 7,276.16, 10,917.76 and 3,378.56

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Solution

The fourth proportional to 7,276.16, 10,917.76 and 3,378.56 is: 5,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.16 : 10,917.76 = 3,378.56 : x
  2. Step 2: Convert to fraction form
    7,276.16/10,917.76 = 3,378.56/x
  3. Step 3: Cross multiply
    7,276.16x = 10,917.76 × 3,378.56
  4. Step 4: Simplify right side
    7,276.16x = 36,886,307.23
  5. Step 5: Solve for x
    x = 36,886,307.23/7,276.16
  6. Step 6: Final answer
    x = 5,069.47

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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.