Home / 3,149.08-4,345.05-1,822.75

Finding the Fourth Proportional to 3,149.08, 4,345.05 and 1,822.75

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Solution

The fourth proportional to 3,149.08, 4,345.05 and 1,822.75 is: 2,515.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.08 : 4,345.05 = 1,822.75 : x
  2. Step 2: Convert to fraction form
    3,149.08/4,345.05 = 1,822.75/x
  3. Step 3: Cross multiply
    3,149.08x = 4,345.05 × 1,822.75
  4. Step 4: Simplify right side
    3,149.08x = 7,919,939.89
  5. Step 5: Solve for x
    x = 7,919,939.89/3,149.08
  6. Step 6: Final answer
    x = 2,515.00

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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.