Home / 3,140.48-4,709.92-1,292.10

Finding the Fourth Proportional to 3,140.48, 4,709.92 and 1,292.10

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Solution

The fourth proportional to 3,140.48, 4,709.92 and 1,292.10 is: 1,937.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.48 : 4,709.92 = 1,292.10 : x
  2. Step 2: Convert to fraction form
    3,140.48/4,709.92 = 1,292.10/x
  3. Step 3: Cross multiply
    3,140.48x = 4,709.92 × 1,292.10
  4. Step 4: Simplify right side
    3,140.48x = 6,085,687.63
  5. Step 5: Solve for x
    x = 6,085,687.63/3,140.48
  6. Step 6: Final answer
    x = 1,937.82

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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.