Home / 2,476.60-3,418.05-1,428.64

Finding the Fourth Proportional to 2,476.60, 3,418.05 and 1,428.64

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Solution

The fourth proportional to 2,476.60, 3,418.05 and 1,428.64 is: 1,971.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.60 : 3,418.05 = 1,428.64 : x
  2. Step 2: Convert to fraction form
    2,476.60/3,418.05 = 1,428.64/x
  3. Step 3: Cross multiply
    2,476.60x = 3,418.05 × 1,428.64
  4. Step 4: Simplify right side
    2,476.60x = 4,883,162.95
  5. Step 5: Solve for x
    x = 4,883,162.95/2,476.60
  6. Step 6: Final answer
    x = 1,971.72

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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.