Home / 1,290.26-1,932.15-924.86

Finding the Fourth Proportional to 1,290.26, 1,932.15 and 924.86

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Solution

The fourth proportional to 1,290.26, 1,932.15 and 924.86 is: 1,384.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290.26 : 1,932.15 = 924.86 : x
  2. Step 2: Convert to fraction form
    1,290.26/1,932.15 = 924.86/x
  3. Step 3: Cross multiply
    1,290.26x = 1,932.15 × 924.86
  4. Step 4: Simplify right side
    1,290.26x = 1,786,968.25
  5. Step 5: Solve for x
    x = 1,786,968.25/1,290.26
  6. Step 6: Final answer
    x = 1,384.97

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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.