Home / 2,370.24-3,555.16-1,138.64

Finding the Fourth Proportional to 2,370.24, 3,555.16 and 1,138.64

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Solution

The fourth proportional to 2,370.24, 3,555.16 and 1,138.64 is: 1,707.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.24 : 3,555.16 = 1,138.64 : x
  2. Step 2: Convert to fraction form
    2,370.24/3,555.16 = 1,138.64/x
  3. Step 3: Cross multiply
    2,370.24x = 3,555.16 × 1,138.64
  4. Step 4: Simplify right side
    2,370.24x = 4,048,047.38
  5. Step 5: Solve for x
    x = 4,048,047.38/2,370.24
  6. Step 6: Final answer
    x = 1,707.86

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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.