Home / 1,290.28-1,930.95-1,014.07

Finding the Fourth Proportional to 1,290.28, 1,930.95 and 1,014.07

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Solution

The fourth proportional to 1,290.28, 1,930.95 and 1,014.07 is: 1,517.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290.28 : 1,930.95 = 1,014.07 : x
  2. Step 2: Convert to fraction form
    1,290.28/1,930.95 = 1,014.07/x
  3. Step 3: Cross multiply
    1,290.28x = 1,930.95 × 1,014.07
  4. Step 4: Simplify right side
    1,290.28x = 1,958,118.47
  5. Step 5: Solve for x
    x = 1,958,118.47/1,290.28
  6. Step 6: Final answer
    x = 1,517.59

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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.