Home / 1,716.20-2,569.38-1,276.60

Finding the Fourth Proportional to 1,716.20, 2,569.38 and 1,276.60

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Solution

The fourth proportional to 1,716.20, 2,569.38 and 1,276.60 is: 1,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.20 : 2,569.38 = 1,276.60 : x
  2. Step 2: Convert to fraction form
    1,716.20/2,569.38 = 1,276.60/x
  3. Step 3: Cross multiply
    1,716.20x = 2,569.38 × 1,276.60
  4. Step 4: Simplify right side
    1,716.20x = 3,280,070.51
  5. Step 5: Solve for x
    x = 3,280,070.51/1,716.20
  6. Step 6: Final answer
    x = 1,911.24

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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.