Home / 1,674.12-2,511.09-578.37

Finding the Fourth Proportional to 1,674.12, 2,511.09 and 578.37

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Solution

The fourth proportional to 1,674.12, 2,511.09 and 578.37 is: 867.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.12 : 2,511.09 = 578.37 : x
  2. Step 2: Convert to fraction form
    1,674.12/2,511.09 = 578.37/x
  3. Step 3: Cross multiply
    1,674.12x = 2,511.09 × 578.37
  4. Step 4: Simplify right side
    1,674.12x = 1,452,339.12
  5. Step 5: Solve for x
    x = 1,452,339.12/1,674.12
  6. Step 6: Final answer
    x = 867.52

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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.