Home / 3,418.32-5,125.56-1,416.40

Finding the Fourth Proportional to 3,418.32, 5,125.56 and 1,416.40

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Solution

The fourth proportional to 3,418.32, 5,125.56 and 1,416.40 is: 2,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.32 : 5,125.56 = 1,416.40 : x
  2. Step 2: Convert to fraction form
    3,418.32/5,125.56 = 1,416.40/x
  3. Step 3: Cross multiply
    3,418.32x = 5,125.56 × 1,416.40
  4. Step 4: Simplify right side
    3,418.32x = 7,259,843.18
  5. Step 5: Solve for x
    x = 7,259,843.18/3,418.32
  6. Step 6: Final answer
    x = 2,123.80

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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.