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Finding the Fourth Proportional to 5,607.90, 8,402.40 and 4,433.40

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Solution

The fourth proportional to 5,607.90, 8,402.40 and 4,433.40 is: 6,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.90 : 8,402.40 = 4,433.40 : x
  2. Step 2: Convert to fraction form
    5,607.90/8,402.40 = 4,433.40/x
  3. Step 3: Cross multiply
    5,607.90x = 8,402.40 × 4,433.40
  4. Step 4: Simplify right side
    5,607.90x = 37,251,200.16
  5. Step 5: Solve for x
    x = 37,251,200.16/5,607.90
  6. Step 6: Final answer
    x = 6,642.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.