Home / 2,416.64-3,625.41-1,320.40

Finding the Fourth Proportional to 2,416.64, 3,625.41 and 1,320.40

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Solution

The fourth proportional to 2,416.64, 3,625.41 and 1,320.40 is: 1,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,416.64 : 3,625.41 = 1,320.40 : x
  2. Step 2: Convert to fraction form
    2,416.64/3,625.41 = 1,320.40/x
  3. Step 3: Cross multiply
    2,416.64x = 3,625.41 × 1,320.40
  4. Step 4: Simplify right side
    2,416.64x = 4,786,993.42
  5. Step 5: Solve for x
    x = 4,786,993.42/2,416.64
  6. Step 6: Final answer
    x = 1,980.85

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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.