Home / 5,225.49-7,838.20-1,329.86

Finding the Fourth Proportional to 5,225.49, 7,838.20 and 1,329.86

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Solution

The fourth proportional to 5,225.49, 7,838.20 and 1,329.86 is: 1,994.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.49 : 7,838.20 = 1,329.86 : x
  2. Step 2: Convert to fraction form
    5,225.49/7,838.20 = 1,329.86/x
  3. Step 3: Cross multiply
    5,225.49x = 7,838.20 × 1,329.86
  4. Step 4: Simplify right side
    5,225.49x = 10,423,708.65
  5. Step 5: Solve for x
    x = 10,423,708.65/5,225.49
  6. Step 6: Final answer
    x = 1,994.78

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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.