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Finding the Fourth Proportional to 3,558.30, 5,334.99 and 1,913.19

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Solution

The fourth proportional to 3,558.30, 5,334.99 and 1,913.19 is: 2,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.30 : 5,334.99 = 1,913.19 : x
  2. Step 2: Convert to fraction form
    3,558.30/5,334.99 = 1,913.19/x
  3. Step 3: Cross multiply
    3,558.30x = 5,334.99 × 1,913.19
  4. Step 4: Simplify right side
    3,558.30x = 10,206,849.52
  5. Step 5: Solve for x
    x = 10,206,849.52/3,558.30
  6. Step 6: Final answer
    x = 2,868.46

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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.