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Finding the Fourth Proportional to 5,598.30, 8,397.30 and 1,438.32

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Solution

The fourth proportional to 5,598.30, 8,397.30 and 1,438.32 is: 2,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,598.30 : 8,397.30 = 1,438.32 : x
  2. Step 2: Convert to fraction form
    5,598.30/8,397.30 = 1,438.32/x
  3. Step 3: Cross multiply
    5,598.30x = 8,397.30 × 1,438.32
  4. Step 4: Simplify right side
    5,598.30x = 12,078,004.54
  5. Step 5: Solve for x
    x = 12,078,004.54/5,598.30
  6. Step 6: Final answer
    x = 2,157.44

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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.