Home / 5,407.32-8,110.92-2,118.08

Finding the Fourth Proportional to 5,407.32, 8,110.92 and 2,118.08

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Solution

The fourth proportional to 5,407.32, 8,110.92 and 2,118.08 is: 3,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.32 : 8,110.92 = 2,118.08 : x
  2. Step 2: Convert to fraction form
    5,407.32/8,110.92 = 2,118.08/x
  3. Step 3: Cross multiply
    5,407.32x = 8,110.92 × 2,118.08
  4. Step 4: Simplify right side
    5,407.32x = 17,179,577.43
  5. Step 5: Solve for x
    x = 17,179,577.43/5,407.32
  6. Step 6: Final answer
    x = 3,177.10

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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.