Home / 5,225.46-7,838.40-1,329.90

Finding the Fourth Proportional to 5,225.46, 7,838.40 and 1,329.90

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Solution

The fourth proportional to 5,225.46, 7,838.40 and 1,329.90 is: 1,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.46 : 7,838.40 = 1,329.90 : x
  2. Step 2: Convert to fraction form
    5,225.46/7,838.40 = 1,329.90/x
  3. Step 3: Cross multiply
    5,225.46x = 7,838.40 × 1,329.90
  4. Step 4: Simplify right side
    5,225.46x = 10,424,288.16
  5. Step 5: Solve for x
    x = 10,424,288.16/5,225.46
  6. Step 6: Final answer
    x = 1,994.90

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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.