Home / 1,486.08-2,229.38-512.16

Finding the Fourth Proportional to 1,486.08, 2,229.38 and 512.16

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Solution

The fourth proportional to 1,486.08, 2,229.38 and 512.16 is: 768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.08 : 2,229.38 = 512.16 : x
  2. Step 2: Convert to fraction form
    1,486.08/2,229.38 = 512.16/x
  3. Step 3: Cross multiply
    1,486.08x = 2,229.38 × 512.16
  4. Step 4: Simplify right side
    1,486.08x = 1,141,799.26
  5. Step 5: Solve for x
    x = 1,141,799.26/1,486.08
  6. Step 6: Final answer
    x = 768.33

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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.