Home / 2,907.52-4,009.36-2,679.68

Finding the Fourth Proportional to 2,907.52, 4,009.36 and 2,679.68

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Solution

The fourth proportional to 2,907.52, 4,009.36 and 2,679.68 is: 3,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.52 : 4,009.36 = 2,679.68 : x
  2. Step 2: Convert to fraction form
    2,907.52/4,009.36 = 2,679.68/x
  3. Step 3: Cross multiply
    2,907.52x = 4,009.36 × 2,679.68
  4. Step 4: Simplify right side
    2,907.52x = 10,743,801.80
  5. Step 5: Solve for x
    x = 10,743,801.80/2,907.52
  6. Step 6: Final answer
    x = 3,695.18

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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.