Home / 5,319.81-7,974.76-2,356.68

Finding the Fourth Proportional to 5,319.81, 7,974.76 and 2,356.68

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Solution

The fourth proportional to 5,319.81, 7,974.76 and 2,356.68 is: 3,532.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.81 : 7,974.76 = 2,356.68 : x
  2. Step 2: Convert to fraction form
    5,319.81/7,974.76 = 2,356.68/x
  3. Step 3: Cross multiply
    5,319.81x = 7,974.76 × 2,356.68
  4. Step 4: Simplify right side
    5,319.81x = 18,793,957.40
  5. Step 5: Solve for x
    x = 18,793,957.40/5,319.81
  6. Step 6: Final answer
    x = 3,532.82

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Why These Related Problems?

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