Home / 1,086.05-1,616.97-1,070.70

Finding the Fourth Proportional to 1,086.05, 1,616.97 and 1,070.70

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Solution

The fourth proportional to 1,086.05, 1,616.97 and 1,070.70 is: 1,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.05 : 1,616.97 = 1,070.70 : x
  2. Step 2: Convert to fraction form
    1,086.05/1,616.97 = 1,070.70/x
  3. Step 3: Cross multiply
    1,086.05x = 1,616.97 × 1,070.70
  4. Step 4: Simplify right side
    1,086.05x = 1,731,289.78
  5. Step 5: Solve for x
    x = 1,731,289.78/1,086.05
  6. Step 6: Final answer
    x = 1,594.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.