Home / 2,155.55-3,231.16-1,506.11

Finding the Fourth Proportional to 2,155.55, 3,231.16 and 1,506.11

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Solution

The fourth proportional to 2,155.55, 3,231.16 and 1,506.11 is: 2,257.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.55 : 3,231.16 = 1,506.11 : x
  2. Step 2: Convert to fraction form
    2,155.55/3,231.16 = 1,506.11/x
  3. Step 3: Cross multiply
    2,155.55x = 3,231.16 × 1,506.11
  4. Step 4: Simplify right side
    2,155.55x = 4,866,462.47
  5. Step 5: Solve for x
    x = 4,866,462.47/2,155.55
  6. Step 6: Final answer
    x = 2,257.65

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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.