Home / 2,966.21-4,093.36-1,690.09

Finding the Fourth Proportional to 2,966.21, 4,093.36 and 1,690.09

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Solution

The fourth proportional to 2,966.21, 4,093.36 and 1,690.09 is: 2,332.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.21 : 4,093.36 = 1,690.09 : x
  2. Step 2: Convert to fraction form
    2,966.21/4,093.36 = 1,690.09/x
  3. Step 3: Cross multiply
    2,966.21x = 4,093.36 × 1,690.09
  4. Step 4: Simplify right side
    2,966.21x = 6,918,146.80
  5. Step 5: Solve for x
    x = 6,918,146.80/2,966.21
  6. Step 6: Final answer
    x = 2,332.32

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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.