Home / 3,211.10-4,815.93-1,132.40

Finding the Fourth Proportional to 3,211.10, 4,815.93 and 1,132.40

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Solution

The fourth proportional to 3,211.10, 4,815.93 and 1,132.40 is: 1,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.10 : 4,815.93 = 1,132.40 : x
  2. Step 2: Convert to fraction form
    3,211.10/4,815.93 = 1,132.40/x
  3. Step 3: Cross multiply
    3,211.10x = 4,815.93 × 1,132.40
  4. Step 4: Simplify right side
    3,211.10x = 5,453,559.13
  5. Step 5: Solve for x
    x = 5,453,559.13/3,211.10
  6. Step 6: Final answer
    x = 1,698.35

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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.