Home / 3,605.28-4,975.77-2,113.56

Finding the Fourth Proportional to 3,605.28, 4,975.77 and 2,113.56

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Solution

The fourth proportional to 3,605.28, 4,975.77 and 2,113.56 is: 2,917.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.28 : 4,975.77 = 2,113.56 : x
  2. Step 2: Convert to fraction form
    3,605.28/4,975.77 = 2,113.56/x
  3. Step 3: Cross multiply
    3,605.28x = 4,975.77 × 2,113.56
  4. Step 4: Simplify right side
    3,605.28x = 10,516,588.44
  5. Step 5: Solve for x
    x = 10,516,588.44/3,605.28
  6. Step 6: Final answer
    x = 2,917.00

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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.