Home / 3,617.79-4,991.67-2,125.77

Finding the Fourth Proportional to 3,617.79, 4,991.67 and 2,125.77

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Solution

The fourth proportional to 3,617.79, 4,991.67 and 2,125.77 is: 2,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.79 : 4,991.67 = 2,125.77 : x
  2. Step 2: Convert to fraction form
    3,617.79/4,991.67 = 2,125.77/x
  3. Step 3: Cross multiply
    3,617.79x = 4,991.67 × 2,125.77
  4. Step 4: Simplify right side
    3,617.79x = 10,611,142.34
  5. Step 5: Solve for x
    x = 10,611,142.34/3,617.79
  6. Step 6: Final answer
    x = 2,933.05

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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.