Home / 2,860.52-4,292.70-1,321.64

Finding the Fourth Proportional to 2,860.52, 4,292.70 and 1,321.64

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Solution

The fourth proportional to 2,860.52, 4,292.70 and 1,321.64 is: 1,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.52 : 4,292.70 = 1,321.64 : x
  2. Step 2: Convert to fraction form
    2,860.52/4,292.70 = 1,321.64/x
  3. Step 3: Cross multiply
    2,860.52x = 4,292.70 × 1,321.64
  4. Step 4: Simplify right side
    2,860.52x = 5,673,404.03
  5. Step 5: Solve for x
    x = 5,673,404.03/2,860.52
  6. Step 6: Final answer
    x = 1,983.35

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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.