Home / 3,458.08-5,186.64-1,118.32

Finding the Fourth Proportional to 3,458.08, 5,186.64 and 1,118.32

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Solution

The fourth proportional to 3,458.08, 5,186.64 and 1,118.32 is: 1,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.08 : 5,186.64 = 1,118.32 : x
  2. Step 2: Convert to fraction form
    3,458.08/5,186.64 = 1,118.32/x
  3. Step 3: Cross multiply
    3,458.08x = 5,186.64 × 1,118.32
  4. Step 4: Simplify right side
    3,458.08x = 5,800,323.24
  5. Step 5: Solve for x
    x = 5,800,323.24/3,458.08
  6. Step 6: Final answer
    x = 1,677.32

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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.