Home / 2,351.40-3,527.10-2,140.80

Finding the Fourth Proportional to 2,351.40, 3,527.10 and 2,140.80

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Solution

The fourth proportional to 2,351.40, 3,527.10 and 2,140.80 is: 3,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.40 : 3,527.10 = 2,140.80 : x
  2. Step 2: Convert to fraction form
    2,351.40/3,527.10 = 2,140.80/x
  3. Step 3: Cross multiply
    2,351.40x = 3,527.10 × 2,140.80
  4. Step 4: Simplify right side
    2,351.40x = 7,550,815.68
  5. Step 5: Solve for x
    x = 7,550,815.68/2,351.40
  6. Step 6: Final answer
    x = 3,211.20

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1.5x scale

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.