Home / 5,115.02-7,059.40-3,125.16

Finding the Fourth Proportional to 5,115.02, 7,059.40 and 3,125.16

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Solution

The fourth proportional to 5,115.02, 7,059.40 and 3,125.16 is: 4,313.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.02 : 7,059.40 = 3,125.16 : x
  2. Step 2: Convert to fraction form
    5,115.02/7,059.40 = 3,125.16/x
  3. Step 3: Cross multiply
    5,115.02x = 7,059.40 × 3,125.16
  4. Step 4: Simplify right side
    5,115.02x = 22,061,754.50
  5. Step 5: Solve for x
    x = 22,061,754.50/5,115.02
  6. Step 6: Final answer
    x = 4,313.13

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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.