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Finding the Fourth Proportional to 5,070.64, 7,605.36 and 1,372.64

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Solution

The fourth proportional to 5,070.64, 7,605.36 and 1,372.64 is: 2,058.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,070.64 : 7,605.36 = 1,372.64 : x
  2. Step 2: Convert to fraction form
    5,070.64/7,605.36 = 1,372.64/x
  3. Step 3: Cross multiply
    5,070.64x = 7,605.36 × 1,372.64
  4. Step 4: Simplify right side
    5,070.64x = 10,439,421.35
  5. Step 5: Solve for x
    x = 10,439,421.35/5,070.64
  6. Step 6: Final answer
    x = 2,058.80

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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.