Home / 2,907.35-4,339.94-2,489.07

Finding the Fourth Proportional to 2,907.35, 4,339.94 and 2,489.07

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Solution

The fourth proportional to 2,907.35, 4,339.94 and 2,489.07 is: 3,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.35 : 4,339.94 = 2,489.07 : x
  2. Step 2: Convert to fraction form
    2,907.35/4,339.94 = 2,489.07/x
  3. Step 3: Cross multiply
    2,907.35x = 4,339.94 × 2,489.07
  4. Step 4: Simplify right side
    2,907.35x = 10,802,414.46
  5. Step 5: Solve for x
    x = 10,802,414.46/2,907.35
  6. Step 6: Final answer
    x = 3,715.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.