Home / 1,290.19-1,935.83-468.58

Finding the Fourth Proportional to 1,290.19, 1,935.83 and 468.58

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Solution

The fourth proportional to 1,290.19, 1,935.83 and 468.58 is: 703.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290.19 : 1,935.83 = 468.58 : x
  2. Step 2: Convert to fraction form
    1,290.19/1,935.83 = 468.58/x
  3. Step 3: Cross multiply
    1,290.19x = 1,935.83 × 468.58
  4. Step 4: Simplify right side
    1,290.19x = 907,081.54
  5. Step 5: Solve for x
    x = 907,081.54/1,290.19
  6. Step 6: Final answer
    x = 703.06

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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.