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Finding the Fourth Proportional to 5,368.46, 7,408.96 and 3,130.16

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Solution

The fourth proportional to 5,368.46, 7,408.96 and 3,130.16 is: 4,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.46 : 7,408.96 = 3,130.16 : x
  2. Step 2: Convert to fraction form
    5,368.46/7,408.96 = 3,130.16/x
  3. Step 3: Cross multiply
    5,368.46x = 7,408.96 × 3,130.16
  4. Step 4: Simplify right side
    5,368.46x = 23,191,230.23
  5. Step 5: Solve for x
    x = 23,191,230.23/5,368.46
  6. Step 6: Final answer
    x = 4,319.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.