Home / 5,421.63-7,478.96-3,297.81

Finding the Fourth Proportional to 5,421.63, 7,478.96 and 3,297.81

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Solution

The fourth proportional to 5,421.63, 7,478.96 and 3,297.81 is: 4,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.63 : 7,478.96 = 3,297.81 : x
  2. Step 2: Convert to fraction form
    5,421.63/7,478.96 = 3,297.81/x
  3. Step 3: Cross multiply
    5,421.63x = 7,478.96 × 3,297.81
  4. Step 4: Simplify right side
    5,421.63x = 24,664,200.41
  5. Step 5: Solve for x
    x = 24,664,200.41/5,421.63
  6. Step 6: Final answer
    x = 4,549.22

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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.