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Finding the Fourth Proportional to 2,362.10, 3,542.40 and 860.93

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Solution

The fourth proportional to 2,362.10, 3,542.40 and 860.93 is: 1,291.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,362.10 : 3,542.40 = 860.93 : x
  2. Step 2: Convert to fraction form
    2,362.10/3,542.40 = 860.93/x
  3. Step 3: Cross multiply
    2,362.10x = 3,542.40 × 860.93
  4. Step 4: Simplify right side
    2,362.10x = 3,049,758.43
  5. Step 5: Solve for x
    x = 3,049,758.43/2,362.10
  6. Step 6: Final answer
    x = 1,291.12

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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.