Home / 2,065.62-2,850.80-1,157.21

Finding the Fourth Proportional to 2,065.62, 2,850.80 and 1,157.21

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Solution

The fourth proportional to 2,065.62, 2,850.80 and 1,157.21 is: 1,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.62 : 2,850.80 = 1,157.21 : x
  2. Step 2: Convert to fraction form
    2,065.62/2,850.80 = 1,157.21/x
  3. Step 3: Cross multiply
    2,065.62x = 2,850.80 × 1,157.21
  4. Step 4: Simplify right side
    2,065.62x = 3,298,980.95
  5. Step 5: Solve for x
    x = 3,298,980.95/2,065.62
  6. Step 6: Final answer
    x = 1,597.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.