Home / 5,760.05-8,639.78-1,864.16

Finding the Fourth Proportional to 5,760.05, 8,639.78 and 1,864.16

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Solution

The fourth proportional to 5,760.05, 8,639.78 and 1,864.16 is: 2,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.05 : 8,639.78 = 1,864.16 : x
  2. Step 2: Convert to fraction form
    5,760.05/8,639.78 = 1,864.16/x
  3. Step 3: Cross multiply
    5,760.05x = 8,639.78 × 1,864.16
  4. Step 4: Simplify right side
    5,760.05x = 16,105,879.77
  5. Step 5: Solve for x
    x = 16,105,879.77/5,760.05
  6. Step 6: Final answer
    x = 2,796.13

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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.