Home / 2,270.11-3,133.63-1,430.65

Finding the Fourth Proportional to 2,270.11, 3,133.63 and 1,430.65

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Solution

The fourth proportional to 2,270.11, 3,133.63 and 1,430.65 is: 1,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.11 : 3,133.63 = 1,430.65 : x
  2. Step 2: Convert to fraction form
    2,270.11/3,133.63 = 1,430.65/x
  3. Step 3: Cross multiply
    2,270.11x = 3,133.63 × 1,430.65
  4. Step 4: Simplify right side
    2,270.11x = 4,483,128.14
  5. Step 5: Solve for x
    x = 4,483,128.14/2,270.11
  6. Step 6: Final answer
    x = 1,974.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.