Home / 2,115.04-3,170.96-1,018.40

Finding the Fourth Proportional to 2,115.04, 3,170.96 and 1,018.40

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Solution

The fourth proportional to 2,115.04, 3,170.96 and 1,018.40 is: 1,526.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.04 : 3,170.96 = 1,018.40 : x
  2. Step 2: Convert to fraction form
    2,115.04/3,170.96 = 1,018.40/x
  3. Step 3: Cross multiply
    2,115.04x = 3,170.96 × 1,018.40
  4. Step 4: Simplify right side
    2,115.04x = 3,229,305.66
  5. Step 5: Solve for x
    x = 3,229,305.66/2,115.04
  6. Step 6: Final answer
    x = 1,526.83

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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.