Home / 2,606.85-3,598.02-1,722.78

Finding the Fourth Proportional to 2,606.85, 3,598.02 and 1,722.78

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Solution

The fourth proportional to 2,606.85, 3,598.02 and 1,722.78 is: 2,377.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,606.85 : 3,598.02 = 1,722.78 : x
  2. Step 2: Convert to fraction form
    2,606.85/3,598.02 = 1,722.78/x
  3. Step 3: Cross multiply
    2,606.85x = 3,598.02 × 1,722.78
  4. Step 4: Simplify right side
    2,606.85x = 6,198,596.90
  5. Step 5: Solve for x
    x = 6,198,596.90/2,606.85
  6. Step 6: Final answer
    x = 2,377.81

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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.