Home / 1,914.35-2,639.79-1,417.95

Finding the Fourth Proportional to 1,914.35, 2,639.79 and 1,417.95

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Solution

The fourth proportional to 1,914.35, 2,639.79 and 1,417.95 is: 1,955.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.35 : 2,639.79 = 1,417.95 : x
  2. Step 2: Convert to fraction form
    1,914.35/2,639.79 = 1,417.95/x
  3. Step 3: Cross multiply
    1,914.35x = 2,639.79 × 1,417.95
  4. Step 4: Simplify right side
    1,914.35x = 3,743,090.23
  5. Step 5: Solve for x
    x = 3,743,090.23/1,914.35
  6. Step 6: Final answer
    x = 1,955.29

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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.