Home / 1,008.13-1,511.23-358.51

Finding the Fourth Proportional to 1,008.13, 1,511.23 and 358.51

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Solution

The fourth proportional to 1,008.13, 1,511.23 and 358.51 is: 537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008.13 : 1,511.23 = 358.51 : x
  2. Step 2: Convert to fraction form
    1,008.13/1,511.23 = 358.51/x
  3. Step 3: Cross multiply
    1,008.13x = 1,511.23 × 358.51
  4. Step 4: Simplify right side
    1,008.13x = 541,791.07
  5. Step 5: Solve for x
    x = 541,791.07/1,008.13
  6. Step 6: Final answer
    x = 537.42

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1.5x scale

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.