Home / 5,303.28-7,319.40-4,042.20

Finding the Fourth Proportional to 5,303.28, 7,319.40 and 4,042.20

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Solution

The fourth proportional to 5,303.28, 7,319.40 and 4,042.20 is: 5,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.28 : 7,319.40 = 4,042.20 : x
  2. Step 2: Convert to fraction form
    5,303.28/7,319.40 = 4,042.20/x
  3. Step 3: Cross multiply
    5,303.28x = 7,319.40 × 4,042.20
  4. Step 4: Simplify right side
    5,303.28x = 29,586,478.68
  5. Step 5: Solve for x
    x = 29,586,478.68/5,303.28
  6. Step 6: Final answer
    x = 5,578.90

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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.