Home / 5,421.45-7,478.72-3,297.63

Finding the Fourth Proportional to 5,421.45, 7,478.72 and 3,297.63

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Solution

The fourth proportional to 5,421.45, 7,478.72 and 3,297.63 is: 4,548.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.45 : 7,478.72 = 3,297.63 : x
  2. Step 2: Convert to fraction form
    5,421.45/7,478.72 = 3,297.63/x
  3. Step 3: Cross multiply
    5,421.45x = 7,478.72 × 3,297.63
  4. Step 4: Simplify right side
    5,421.45x = 24,662,055.15
  5. Step 5: Solve for x
    x = 24,662,055.15/5,421.45
  6. Step 6: Final answer
    x = 4,548.98

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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.