Home / 2,650.59-3,980.07-1,728.36

Finding the Fourth Proportional to 2,650.59, 3,980.07 and 1,728.36

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Solution

The fourth proportional to 2,650.59, 3,980.07 and 1,728.36 is: 2,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.59 : 3,980.07 = 1,728.36 : x
  2. Step 2: Convert to fraction form
    2,650.59/3,980.07 = 1,728.36/x
  3. Step 3: Cross multiply
    2,650.59x = 3,980.07 × 1,728.36
  4. Step 4: Simplify right side
    2,650.59x = 6,878,993.79
  5. Step 5: Solve for x
    x = 6,878,993.79/2,650.59
  6. Step 6: Final answer
    x = 2,595.27

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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.