Home / 2,011.68-3,017.12-1,087.07

Finding the Fourth Proportional to 2,011.68, 3,017.12 and 1,087.07

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Solution

The fourth proportional to 2,011.68, 3,017.12 and 1,087.07 is: 1,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.68 : 3,017.12 = 1,087.07 : x
  2. Step 2: Convert to fraction form
    2,011.68/3,017.12 = 1,087.07/x
  3. Step 3: Cross multiply
    2,011.68x = 3,017.12 × 1,087.07
  4. Step 4: Simplify right side
    2,011.68x = 3,279,800.12
  5. Step 5: Solve for x
    x = 3,279,800.12/2,011.68
  6. Step 6: Final answer
    x = 1,630.38

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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.