Home / 7,140.56-10,712.66-2,759.27

Finding the Fourth Proportional to 7,140.56, 10,712.66 and 2,759.27

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Solution

The fourth proportional to 7,140.56, 10,712.66 and 2,759.27 is: 4,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.56 : 10,712.66 = 2,759.27 : x
  2. Step 2: Convert to fraction form
    7,140.56/10,712.66 = 2,759.27/x
  3. Step 3: Cross multiply
    7,140.56x = 10,712.66 × 2,759.27
  4. Step 4: Simplify right side
    7,140.56x = 29,559,054.00
  5. Step 5: Solve for x
    x = 29,559,054.00/7,140.56
  6. Step 6: Final answer
    x = 4,139.60

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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.