Home / 3,140.14-4,331-2,300.54

Finding the Fourth Proportional to 3,140.14, 4,331 and 2,300.54

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Solution

The fourth proportional to 3,140.14, 4,331 and 2,300.54 is: 3,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.14 : 4,331 = 2,300.54 : x
  2. Step 2: Convert to fraction form
    3,140.14/4,331 = 2,300.54/x
  3. Step 3: Cross multiply
    3,140.14x = 4,331 × 2,300.54
  4. Step 4: Simplify right side
    3,140.14x = 9,963,638.74
  5. Step 5: Solve for x
    x = 9,963,638.74/3,140.14
  6. Step 6: Final answer
    x = 3,172.99

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1.5x scale

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.