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Finding the Fourth Proportional to 5,329.91, 7,995.71 and 1,772.15

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Solution

The fourth proportional to 5,329.91, 7,995.71 and 1,772.15 is: 2,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.91 : 7,995.71 = 1,772.15 : x
  2. Step 2: Convert to fraction form
    5,329.91/7,995.71 = 1,772.15/x
  3. Step 3: Cross multiply
    5,329.91x = 7,995.71 × 1,772.15
  4. Step 4: Simplify right side
    5,329.91x = 14,169,624.41
  5. Step 5: Solve for x
    x = 14,169,624.41/5,329.91
  6. Step 6: Final answer
    x = 2,658.51

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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.