Home / 5,449.47-7,521.81-3,212.64

Finding the Fourth Proportional to 5,449.47, 7,521.81 and 3,212.64

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Solution

The fourth proportional to 5,449.47, 7,521.81 and 3,212.64 is: 4,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.47 : 7,521.81 = 3,212.64 : x
  2. Step 2: Convert to fraction form
    5,449.47/7,521.81 = 3,212.64/x
  3. Step 3: Cross multiply
    5,449.47x = 7,521.81 × 3,212.64
  4. Step 4: Simplify right side
    5,449.47x = 24,164,867.68
  5. Step 5: Solve for x
    x = 24,164,867.68/5,449.47
  6. Step 6: Final answer
    x = 4,434.35

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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.