Home / 3,477.81-5,213.46-1,285.95

Finding the Fourth Proportional to 3,477.81, 5,213.46 and 1,285.95

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Solution

The fourth proportional to 3,477.81, 5,213.46 and 1,285.95 is: 1,927.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.81 : 5,213.46 = 1,285.95 : x
  2. Step 2: Convert to fraction form
    3,477.81/5,213.46 = 1,285.95/x
  3. Step 3: Cross multiply
    3,477.81x = 5,213.46 × 1,285.95
  4. Step 4: Simplify right side
    3,477.81x = 6,704,248.89
  5. Step 5: Solve for x
    x = 6,704,248.89/3,477.81
  6. Step 6: Final answer
    x = 1,927.72

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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.