Home / 1,788.12-2,468.70-1,416.60

Finding the Fourth Proportional to 1,788.12, 2,468.70 and 1,416.60

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Solution

The fourth proportional to 1,788.12, 2,468.70 and 1,416.60 is: 1,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.12 : 2,468.70 = 1,416.60 : x
  2. Step 2: Convert to fraction form
    1,788.12/2,468.70 = 1,416.60/x
  3. Step 3: Cross multiply
    1,788.12x = 2,468.70 × 1,416.60
  4. Step 4: Simplify right side
    1,788.12x = 3,497,160.42
  5. Step 5: Solve for x
    x = 3,497,160.42/1,788.12
  6. Step 6: Final answer
    x = 1,955.78

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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.