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Finding the Fourth Proportional to 5,445.38, 8,164.98 and 4,980.98

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Solution

The fourth proportional to 5,445.38, 8,164.98 and 4,980.98 is: 7,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.38 : 8,164.98 = 4,980.98 : x
  2. Step 2: Convert to fraction form
    5,445.38/8,164.98 = 4,980.98/x
  3. Step 3: Cross multiply
    5,445.38x = 8,164.98 × 4,980.98
  4. Step 4: Simplify right side
    5,445.38x = 40,669,602.08
  5. Step 5: Solve for x
    x = 40,669,602.08/5,445.38
  6. Step 6: Final answer
    x = 7,468.64

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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.