Home / 2,976.84-4,102.38-2,903.94

Finding the Fourth Proportional to 2,976.84, 4,102.38 and 2,903.94

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Solution

The fourth proportional to 2,976.84, 4,102.38 and 2,903.94 is: 4,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.84 : 4,102.38 = 2,903.94 : x
  2. Step 2: Convert to fraction form
    2,976.84/4,102.38 = 2,903.94/x
  3. Step 3: Cross multiply
    2,976.84x = 4,102.38 × 2,903.94
  4. Step 4: Simplify right side
    2,976.84x = 11,913,065.38
  5. Step 5: Solve for x
    x = 11,913,065.38/2,976.84
  6. Step 6: Final answer
    x = 4,001.92

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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.