Home / 5,760.76-8,639.70-1,864.12

Finding the Fourth Proportional to 5,760.76, 8,639.70 and 1,864.12

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Solution

The fourth proportional to 5,760.76, 8,639.70 and 1,864.12 is: 2,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.76 : 8,639.70 = 1,864.12 : x
  2. Step 2: Convert to fraction form
    5,760.76/8,639.70 = 1,864.12/x
  3. Step 3: Cross multiply
    5,760.76x = 8,639.70 × 1,864.12
  4. Step 4: Simplify right side
    5,760.76x = 16,105,437.56
  5. Step 5: Solve for x
    x = 16,105,437.56/5,760.76
  6. Step 6: Final answer
    x = 2,795.71

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1.5x scale

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.