Home / 1,107.45-1,528.26-610.12

Finding the Fourth Proportional to 1,107.45, 1,528.26 and 610.12

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Solution

The fourth proportional to 1,107.45, 1,528.26 and 610.12 is: 841.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.45 : 1,528.26 = 610.12 : x
  2. Step 2: Convert to fraction form
    1,107.45/1,528.26 = 610.12/x
  3. Step 3: Cross multiply
    1,107.45x = 1,528.26 × 610.12
  4. Step 4: Simplify right side
    1,107.45x = 932,421.99
  5. Step 5: Solve for x
    x = 932,421.99/1,107.45
  6. Step 6: Final answer
    x = 841.95

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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.