Home / 5,447.91-7,515.63-3,558.99

Finding the Fourth Proportional to 5,447.91, 7,515.63 and 3,558.99

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Solution

The fourth proportional to 5,447.91, 7,515.63 and 3,558.99 is: 4,909.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.91 : 7,515.63 = 3,558.99 : x
  2. Step 2: Convert to fraction form
    5,447.91/7,515.63 = 3,558.99/x
  3. Step 3: Cross multiply
    5,447.91x = 7,515.63 × 3,558.99
  4. Step 4: Simplify right side
    5,447.91x = 26,748,052.01
  5. Step 5: Solve for x
    x = 26,748,052.01/5,447.91
  6. Step 6: Final answer
    x = 4,909.78

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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.