Home / 3,246.90-4,869.72-1,055.11

Finding the Fourth Proportional to 3,246.90, 4,869.72 and 1,055.11

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Solution

The fourth proportional to 3,246.90, 4,869.72 and 1,055.11 is: 1,582.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.90 : 4,869.72 = 1,055.11 : x
  2. Step 2: Convert to fraction form
    3,246.90/4,869.72 = 1,055.11/x
  3. Step 3: Cross multiply
    3,246.90x = 4,869.72 × 1,055.11
  4. Step 4: Simplify right side
    3,246.90x = 5,138,107.77
  5. Step 5: Solve for x
    x = 5,138,107.77/3,246.90
  6. Step 6: Final answer
    x = 1,582.47

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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.