Home / 2,976.68-4,090.59-2,415.96

Finding the Fourth Proportional to 2,976.68, 4,090.59 and 2,415.96

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Solution

The fourth proportional to 2,976.68, 4,090.59 and 2,415.96 is: 3,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.68 : 4,090.59 = 2,415.96 : x
  2. Step 2: Convert to fraction form
    2,976.68/4,090.59 = 2,415.96/x
  3. Step 3: Cross multiply
    2,976.68x = 4,090.59 × 2,415.96
  4. Step 4: Simplify right side
    2,976.68x = 9,882,701.82
  5. Step 5: Solve for x
    x = 9,882,701.82/2,976.68
  6. Step 6: Final answer
    x = 3,320.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.