Home / 7,276.65-10,905.85-3,111.76

Finding the Fourth Proportional to 7,276.65, 10,905.85 and 3,111.76

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Solution

The fourth proportional to 7,276.65, 10,905.85 and 3,111.76 is: 4,663.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.65 : 10,905.85 = 3,111.76 : x
  2. Step 2: Convert to fraction form
    7,276.65/10,905.85 = 3,111.76/x
  3. Step 3: Cross multiply
    7,276.65x = 10,905.85 × 3,111.76
  4. Step 4: Simplify right side
    7,276.65x = 33,936,385.87
  5. Step 5: Solve for x
    x = 33,936,385.87/7,276.65
  6. Step 6: Final answer
    x = 4,663.74

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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.