Home / 2,278.08-3,416.40-718.02

Finding the Fourth Proportional to 2,278.08, 3,416.40 and 718.02

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Solution

The fourth proportional to 2,278.08, 3,416.40 and 718.02 is: 1,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.08 : 3,416.40 = 718.02 : x
  2. Step 2: Convert to fraction form
    2,278.08/3,416.40 = 718.02/x
  3. Step 3: Cross multiply
    2,278.08x = 3,416.40 × 718.02
  4. Step 4: Simplify right side
    2,278.08x = 2,453,043.53
  5. Step 5: Solve for x
    x = 2,453,043.53/2,278.08
  6. Step 6: Final answer
    x = 1,076.80

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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.