Home / 2,917.96-4,378.14-2,274.28

Finding the Fourth Proportional to 2,917.96, 4,378.14 and 2,274.28

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Solution

The fourth proportional to 2,917.96, 4,378.14 and 2,274.28 is: 3,412.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.96 : 4,378.14 = 2,274.28 : x
  2. Step 2: Convert to fraction form
    2,917.96/4,378.14 = 2,274.28/x
  3. Step 3: Cross multiply
    2,917.96x = 4,378.14 × 2,274.28
  4. Step 4: Simplify right side
    2,917.96x = 9,957,116.24
  5. Step 5: Solve for x
    x = 9,957,116.24/2,917.96
  6. Step 6: Final answer
    x = 3,412.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.