Home / 2,909.28-4,018.92-2,319.06

Finding the Fourth Proportional to 2,909.28, 4,018.92 and 2,319.06

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Solution

The fourth proportional to 2,909.28, 4,018.92 and 2,319.06 is: 3,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.28 : 4,018.92 = 2,319.06 : x
  2. Step 2: Convert to fraction form
    2,909.28/4,018.92 = 2,319.06/x
  3. Step 3: Cross multiply
    2,909.28x = 4,018.92 × 2,319.06
  4. Step 4: Simplify right side
    2,909.28x = 9,320,116.62
  5. Step 5: Solve for x
    x = 9,320,116.62/2,909.28
  6. Step 6: Final answer
    x = 3,203.58

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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.