Home / 5,629.69-8,439.88-2,345.14

Finding the Fourth Proportional to 5,629.69, 8,439.88 and 2,345.14

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Solution

The fourth proportional to 5,629.69, 8,439.88 and 2,345.14 is: 3,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.69 : 8,439.88 = 2,345.14 : x
  2. Step 2: Convert to fraction form
    5,629.69/8,439.88 = 2,345.14/x
  3. Step 3: Cross multiply
    5,629.69x = 8,439.88 × 2,345.14
  4. Step 4: Simplify right side
    5,629.69x = 19,792,700.18
  5. Step 5: Solve for x
    x = 19,792,700.18/5,629.69
  6. Step 6: Final answer
    x = 3,515.77

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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.